Master The Invisible Stitch: How To Slip Stitch Hand Sewing

What is a slip stitch in hand sewing? A slip stitch is a hand sewing technique used to join two pieces of fabric together or secure a fold in a way that the stitches are nearly invisible from the right side of the fabric. Can I use a slip stitch for hemming? Yes, it is one of the most common and best stitches for hemming because it creates a blind stitch or hidden stitch. Is the slip stitch the same as a blind stitch? Yes, the terms are often used interchangeably, especially when referring to hemming, because the goal of a slip stitch is to be blind or hidden. Who uses the slip stitch? Sewists of all levels use it for many tasks, from professional garment making and home decor to simple repairs and crafts. It’s one of the most useful easy hand sewing stitches to learn. Mastering this invisible stitch will make your hand sewing look clean and professional.

Why Learn This Hidden Stitch?

Learning the slip stitch makes your sewing look polished and neat. It’s a key part of finishing seams by hand or attaching things smoothly. This stitch is strong but hides well. It’s perfect when you don’t want stitches to show.

Benefits of the Slip Stitch

It hides well: Stitches sink into folds or seams, making them hard to see. This is why it’s called an invisible stitch or hidden stitch.
It’s strong enough: It holds fabric edges or pieces together securely for many uses like hems or closing openings.
It’s flexible: It works on many fabrics and for many jobs, from clothes to home items.
It looks neat: When done right, the sewing looks very tidy.

What You Need to Start

You don’t need many things to do a slip stitch. Just a few basics will get you going.

Fabric you want to sew
Needle suitable for your fabric
Sewing thread for hand sewing
Scissors
Pins (optional, but helpful)
Iron (optional, but helps press folds flat)

Choosing Your Tools

Picking the right needle and thread is important. It helps the stitch look good and makes sewing easier.

Selecting the Right Needle

Hand sewing needles come in different sizes and types.

Size: Needles have numbers. Higher numbers mean thinner needles. Thinner needles work best for fine fabrics like silk or rayon. Thicker needles work well for cotton, linen, or wool. A medium size (like a size 7 or 8 sharps or between sizes 5-10) is good for most projects when you are starting.
Type:
- Sharps: These are medium length and have a sharp point. They are good for most woven fabrics.
- Betweens: These are shorter than sharps. They are good for making quick, small stitches, like for quilting or fine detail work.
- Milliners: These are longer needles. They are good for basting or gathering fabric.
- Embroidery needles: These have a larger eye for thicker thread but a sharp point.
- Consider your fabric: A very fine needle might break on thick denim. A thick needle will leave big holes in delicate silk. Pick a needle that slides through your fabric easily without making big holes.

Choosing Sewing Thread for Hand Sewing

The thread should match your fabric’s color as closely as possible. This helps the stitch stay hidden.

Type:
- All-purpose thread: This is a common choice, usually polyester or a poly-cotton blend. It’s strong and works for most fabrics.
- Cotton thread: Good for cotton or linen fabrics. It doesn’t have much stretch.
- Silk thread: Very fine and strong. Good for silk or wool. It blends in well.
- Polyester thread: Strong and has a little stretch. Good for knits or areas that need strength.
Weight: Thread weight affects how visible the thread is. Use a thread weight suitable for your fabric. Thinner fabrics need thinner thread. Thicker fabrics can use slightly thicker thread. All-purpose thread is usually a good weight for most hand sewing.
Matching Color: Take your fabric scrap to the store. Hold different thread spools against it. The thread that seems to disappear is the one to choose. If you can’t find a perfect match, pick a shade that is slightly darker than your fabric. Darker colors tend to blend in better than lighter ones.

Getting Ready: Fabric Prep

Getting the fabric ready is a big step in making the slip stitch invisible.

Preparing a Hem

This is a classic use for the hemming stitch or blind stitch.

Press the first fold: Turn the raw edge of the fabric up by about 1/4 inch to 1/2 inch (0.5 cm to 1 cm). Press this fold flat with an iron. This hides the raw edge.
Press the second fold: Turn the fabric up again by the amount you want for your finished hem (e.g., 1 inch or 2-3 cm). Press this second fold flat.
Secure the fold: Use pins to hold the double-folded hem in place. Place pins every few inches, going across the hem fold.

Preparing to Close a Seam Opening

This is useful for closing openings left in linings, toy seams, or cushions after stuffing. This is a key way of closing seams by hand invisibly.

Trim seam allowances: Make sure the seam allowances along the opening are trimmed evenly.
Press seam allowances inward: Press the seam allowance on both sides of the opening inwards, towards the inside of the item. The pressed edge should line up with the seam line you stitched earlier.
Align the edges: Bring the two pressed edges of the opening together so they meet neatly. Pins can help hold them together.

Preparing for Applique

The slip stitch is a great applique stitch because it attaches shapes without the stitches showing on the right side.

Prepare the applique shape: If the applique piece has raw edges, turn them under by a small amount (like 1/4 inch or 0.5 cm) all around the shape. Press this folded edge neatly. You can use a bit of fabric glue stick or pressing to help hold the fold.
Position the shape: Place the prepared applique shape onto the background fabric where you want it to go.
Pin in place: Use pins to hold the applique shape firmly on the background fabric. Place pins close to the edge you will be stitching.

Doing the Basic Slip Stitch: Step by Step

Let’s learn how to make the stitch itself. This guide focuses on doing a hem, but the basic stitch action is the same for other uses.

Threading the Needle

Cut a length of thread. About 18-24 inches (45-60 cm) is good. Longer threads can tangle easily.
Thread one end through the eye of the needle.
You can sew with a single thread or a double thread. A double thread is stronger. To use a double thread, pull the thread through the needle eye until both ends meet.
Tie a knot at the end(s) of the thread. A simple overhand knot works. For extra security, you can make a double knot.

Starting the Stitch

You need to anchor your thread so it doesn’t pull out.

Hide the knot: Push your needle through the fabric fold or seam allowance where you want to start. Come out inside the fold. The knot will be hidden inside the folded edge.
For a hem: Go inside the folded hem edge near the seam or start point. Bring the needle out from inside the fold, very close to the edge.
For closing a seam: Start inside one of the pressed-under seam allowances, near the beginning of the opening. Bring the needle out along the very edge of the folded seam allowance.
Alternatively, you can use a tiny backstitch right on the fold edge to secure the thread without a knot showing outside. Take one tiny stitch, then another tiny stitch right on top of the first one. This is a very secure start.

Making the Stitches (The Invisible Part!)

This is where the magic happens for the invisible stitch or hidden stitch.

Step 1: Catch the main fabric. Look at the main fabric right next to the folded edge you are sewing. Pick up just one or two threads of the main fabric with the tip of your needle. Make this bite tiny!
- Think of it like this: You are just grazing the surface of the main fabric.
Step 2: Go into the fold. Push the needle straight forward into the folded edge of the hem, seam allowance, or applique piece. Run the needle inside the fold for a short distance (about 1/4 inch to 1/2 inch or 0.5 cm to 1 cm).
- Think of it like this: The needle travels secretly within the fold.
Step 3: Come out of the fold. Bring the needle out of the fold. It should come out right where you plan to take your next tiny bite on the main fabric.
Step 4: Pull the thread. Gently pull the thread through. The stitch you just made should mostly disappear into the fold, and only a tiny stitch shows on the main fabric side (if any shows at all).
Repeat: Keep repeating steps 1-4. Take a tiny bit of main fabric, then go forward inside the fold, come out, pull thread.

Key to Invisibility:
* Keep the bites on the main fabric very, very small. Just a thread or two!
* Keep the distance the needle travels inside the fold fairly consistent.
* Don’t pull the thread too tight, or it will pucker. Don’t leave it too loose, or it will loop. Aim for smooth, flat stitches.

Finishing the Stitch

When you get to the end of your sewing line:

Take one or two extra tiny stitches right on top of each other at the end point to make a small, secure knot.
Push the needle into the fabric fold or seam allowance again, just like you did when you started.
Run the needle inside the fold for about an inch (2-3 cm).
Bring the needle out of the fold.
Pull the thread gently to hide the knot and the tail inside the fold.
Cut the thread close to the fabric. The end is now hidden.

Different Ways to Use the Slip Stitch

The basic stitch is the same, but how you prepare the fabric changes based on what you are sewing.

For Hemming (Blind Stitch/Hemming Stitch)

This is the most classic use of the blind stitch.

Prepare the double-folded hem as described earlier.
Start your stitch inside the top fold of the hem near a side seam.
Take a tiny stitch on the main fabric right next to the fold.
Go into the top fold of the hem and run the needle forward 1/4 to 1/2 inch (0.5-1 cm).
Come out of the fold.
Repeat: Tiny bite on main fabric, forward inside the fold, out, pull.
Continue around the hem.
Finish your stitch securely inside the hem fold.
- Why it works here: The tiny stitch on the main fabric is barely visible. The longer stitch runs inside the hem fold and doesn’t show at all from the right side of the fabric.

For Closing Seams by Hand

Great for closing pillow openings, toy stuffing holes, or lining openings.

Press seam allowances inward along the opening. Match the folded edges together.
Start your stitch inside one of the pressed-under seam allowances at one end of the opening. Bring the needle out right on the folded edge.
Take a tiny stitch on the opposite folded edge, picking up just a thread or two.
Go straight across to the first folded edge (the one you started on). Insert the needle into this fold and run it forward 1/4 to 1/2 inch (0.5-1 cm) inside the fold.
Bring the needle out of the fold, right on the edge.
Repeat: Tiny bite on the opposite folded edge, go straight across, run needle forward inside the fold you are on, come out.
Continue along the opening, bringing the two folded edges together with these tiny stitches that go between them.
Finish your stitch securely inside one of the folds.
- Why it works here: The stitches travel between the two folded edges, pulling them together neatly. Only tiny cross-stitches might be visible right on the seam line, easily hidden in the fabric weave. This is a perfect hidden stitch for seams.

For Applique (Applique Stitch)

Attaching a shape smoothly.

Prepare the applique shape with its edges turned under and pressed. Pin it in place on the background fabric.
Start your stitch inside the folded edge of the applique piece. Bring the needle out right on the folded edge.
Take a tiny stitch on the background fabric, right next to the folded edge of the applique. Just catch a thread or two.
Go into the folded edge of the applique shape and run the needle forward 1/4 to 1/2 inch (0.5-1 cm) inside the fold.
Bring the needle out of the fold, right on the edge.
Repeat: Tiny bite on background fabric, go forward inside the applique fold, out, pull.
Continue around the edge of the applique shape.
Finish your stitch securely inside the applique fold.
- Why it works here: The stitches anchoring the applique are tiny on the background fabric and disappear into the folded edge of the applique piece. A great applique stitch for a clean look.

For Finishing Seams by Hand (Binding/Facing)

Using the slip stitch to secure a binding or facing edge neatly.

After attaching a binding or facing to an edge, fold it over to the inside of the item. Press the folded edge neatly.
The pressed edge of the binding or facing will sit against the main fabric.
Start your stitch inside the folded edge of the binding/facing. Bring the needle out right on the fold.
Take a tiny stitch on the main fabric, just next to the folded edge of the binding/facing.
Go into the folded edge of the binding/facing and run the needle forward 1/4 to 1/2 inch (0.5-1 cm) inside the fold.
Bring the needle out of the fold, right on the edge.
Repeat: Tiny bite on main fabric, go forward inside the binding/facing fold, out, pull.
Continue along the edge.
Finish your stitch securely inside the binding/facing fold.
- Why it works here: It holds the binding or facing flat against the fabric with stitches that are hidden inside the folded edge. This is a clean way of finishing seams by hand.

Grasping Key Tips for Success

Making your slip stitches look great takes a little practice and knowing a few tricks.

Small Stitches are Best: The tinier the stitch you take on the main fabric, the less visible it will be. Aim for just one or two threads.
Consistent Stitch Length: Keep the distance you travel inside the fold about the same each time. This makes the stitches on the back look even and helps keep the front invisible.
Don’t Pull Too Tight: Pull the thread just enough to make the stitch lie flat. If you pull too hard, the fabric will pucker or gather. If you leave it too loose, you’ll see loops. Find that happy medium.
Match Your Thread: Using thread that matches your fabric color (or is slightly darker) is key to the invisible stitch effect.
Use the Right Needle: A needle that is too thick will leave holes. A needle that is too thin might break. Choose a needle that easily glides through your fabric.
Press First: Pressing your folds or seam allowances before you sew makes a crisp edge. This edge is much easier to sew along and helps hide the stitches better.
Pin Carefully: Pins hold the fabric in place so you can focus on the stitch. Place them perpendicular to the edge, so you can sew up to them and remove them easily.
Practice: Like any skill, the slip stitch gets better with practice. Try it on scraps first.

Deciphering Common Issues and How to Fix Them

Even experienced sewers sometimes have trouble with the slip stitch. Here are a few common problems and what to do.

Problem	Why it Happens	How to Fix or Avoid It
Stitches show on the front	Bites on main fabric are too big	Take smaller bites, catching only 1-2 threads.
Fabric is puckering	Thread is pulled too tight	Loosen your tension. Pull just enough to make the stitch lie flat, not gather the fabric.
Stitches are loose/looping	Thread is not pulled enough	Gently pull the thread through after each stitch until it sits flat against the fabric.
Knot pulled through	Knot is too small or thread is too thin	Use a larger knot (double knot) or start with a secure tiny backstitch on the fold.
Stitch looks uneven	Stitch length inside fold varies a lot	Try to make each stitch go forward the same distance inside the fold.
Needle is hard to push	Needle is too big for fabric, or dull	Use a thinner, sharper needle. Consider a thimble if needed.
Thread tangles	Thread is too long	Use shorter lengths of thread (18-24 inches max). Waxing thread can also help.
Edge is wavy/not straight	Edge wasn’t pressed well or pinned enough	Press the fold very well before sewing. Use more pins to hold the edge flat.

Comparing the Slip Stitch

The slip stitch is a go-to stitch for invisible work, but how does it stack up against other easy hand sewing stitches?

Running Stitch: This is a simple in-and-out stitch. Stitches show on both sides of the fabric. It’s fast and good for gathering or temporary seams (basting), but not for invisible finishing.
Backstitch: This stitch looks like machine sewing on one side and overlaps on the other. It’s very strong and good for seams that need durability. However, it is very visible.
Whipstitch: This stitch wraps over the edge of two pieces of fabric or a folded edge. It’s good for joining felt or securing edges quickly. Stitches show along the edge. It’s not an invisible stitch.
Catchstitch (or Herringbone stitch): This is a cross-shaped stitch often used for hemming, especially on knits or fabrics that fray easily. It offers some flexibility. Like the slip stitch, it is meant to be a blind stitch, but it works differently, going back and forth in a zigzag pattern. It’s slightly more visible than a well-done slip stitch from the back.

The slip stitch stands out because it combines neatness, reasonable strength, and nearly total invisibility from the right side. It truly is the master of hidden stitches.

Fathoming Different Fabrics

The type of fabric you use affects your slip stitch technique slightly.

Lightweight Fabrics (Silk, Rayon, Voile): Use a very fine needle (size 9 or 10 sharps). Use fine sewing thread for hand sewing, like silk or fine polyester. Take very tiny bites on the main fabric – just one or two threads is a must! Press folds carefully, maybe using starch alternative spray for crispness.
Mediumweight Fabrics (Cotton, Linen, Poplin): A size 7 or 8 needle works well. All-purpose thread is usually fine. Take small bites on the main fabric, but you might catch a few more threads than on lightweight fabric. Pressing is usually easy.
Heavyweight Fabrics (Denim, Canvas, Wool): Use a sturdier needle (size 5 or 6). Use strong thread, like heavy-duty polyester or multiple strands of regular thread (though a single strand is often best for invisibility). You might need a thimble to push the needle through. Bites on the main fabric can be slightly larger (but still aim for small) if the fabric weave is coarse. Press folds firmly, possibly using steam.
Knits: Use a ballpoint or stretch needle if possible (though sharps can work). Use polyester thread, which has some stretch. Avoid pulling the thread too tight, as it can stretch the fabric and pucker. The slip stitch works well on stable knits, but very stretchy knits might need a different hem finish. The catchstitch is also a good blind stitch option for knits.

No matter the fabric, the principle is the same: tiny bite on the main fabric, travel inside the fold.

Practice Makes Perfect

The best way to master the slip stitch is to do it.

Start with Scraps: Take some basic cotton fabric scraps. Press a double hem on one edge. Practice sewing the slip stitch along this hem. Focus on making the stitches tiny and even.
Try Different Fabrics: Once you are comfortable, try the stitch on different types of fabric you might use for projects. See how your technique needs to adjust for thickness or slipperiness.
Practice Closing Openings: Cut two squares of fabric. Sew them together around three sides. Press the seam allowances open or to one side. Turn the square right side out. Practice using the slip stitch to close the open side, pressing the seam allowances inward first.
Practice Applique: Cut out a simple felt or cotton shape. Turn under the edges (if using cotton) and press. Practice slip stitching it onto another piece of fabric.

Don’t expect perfection on your first try. Your stitches might be uneven, or you might pull too tight. That’s okay! Just keep practicing, and you will improve. Soon, your slip stitches will be truly invisible.

In Review: The Invisible Power

The slip stitch is a fundamental hand sewing technique that every sewer should know. It is called the invisible stitch, blind stitch, and hidden stitch for good reason – its main power is its ability to disappear. From creating neat hemming stitches on garments and curtains to closing seams by hand on toys or pillows, and attaching applique shapes with a clean edge, the slip stitch is incredibly versatile.

Choosing the right sewing thread for hand sewing and a suitable needle for your fabric sets you up for success. Preparing your fabric by pressing crisp folds is also vital. Then, it’s all about the simple, repeated motion: a tiny grab of the main fabric, a short journey inside the fold, coming out, and pulling gently.

This easy hand sewing stitch takes a little practice to master, but the result is always worth it – a strong, clean finish with no stitches showing. Add the slip stitch to your sewing toolkit today and see how it elevates your hand sewing projects.

Frequently Asked Questions

Is the slip stitch really invisible?

When done correctly with matching thread and small stitches, the slip stitch is nearly invisible from the right side of the fabric. You might see tiny dots where the needle caught the main fabric, but the threads themselves are hidden. It’s the closest you can get to an invisible hand stitch.

How long should my stitches be?

The stitch length refers to how far forward you run the needle inside the fold. For most projects, 1/4 inch to 1/2 inch (0.5 cm to 1 cm) is a good length. Shorter stitches are stronger and less visible, but take longer. Longer stitches are faster but might be slightly less secure and could show more. Consistency is more important than the exact length.

What’s the difference between a slip stitch and a hemming stitch?

Often, there is no difference. The slip stitch is a type of hemming stitch. People call it a hemming stitch or blind stitch when they use it for hems specifically because it hides the stitches. But the same stitch action is used for closing seams or applique.

Can I use the slip stitch on curved edges?

Yes, you can. For curved hems or applique, you will need to clip or notch the seam allowance or fold before pressing to help the edge lie flat. Then, sew the slip stitch as usual, taking slightly smaller stitches on tighter curves to help the fabric ease.

My thread keeps knotting up. What am I doing wrong?

Using thread that is too long is the most common reason for tangling. Cut shorter lengths (under 24 inches). Also, try running the thread through beeswax or a thread conditioner before you sew. This smooths the thread and reduces tangles. Don’t let the needle dangle and twist the thread as you sew.

How do I hide the knot at the start and end?

To start, push the needle into the fold and bring it out inside the fold, hiding the knot between the fabric layers. To end, make your final knot right on the edge, then push the needle into the fold again, run it inside for an inch or two, and cut the thread as it exits the fold. The knot and tail are hidden.

Can I use the slip stitch on machine-sewn seams?

Yes, the slip stitch is often used to close a gap left in a machine-sewn seam (like on a bag lining or pillow) because it gives a very neat, hand-finished look to the closing. This is a great example of closing seams by hand neatly.

Is the slip stitch strong enough for clothing hems?

Yes, absolutely. A properly done slip stitch is secure enough for most clothing hems that won’t face extreme stress. For very durable items like children’s clothing or heavy-duty workwear, a machine hem might be stronger, but for dresses, skirts, trousers, and sleeves, a hand-stitched slip stitch hem is a mark of quality sewing.