How to Sew a Whip Stitch
The whip stitch is a spiral of diagonal stitches worked over an edge, and it does two jobs at once: it binds a raw edge so it cannot fray, and it joins two edges or layers together. Because the thread wraps around the edge, the stitch grips fraying fabric and holds firm with very little material. It is the standard finish for felt, applique and small soft toys.
Materials
- Felt, fleece or a stable woven fabric
- Matching all-purpose thread
- Water-soluble marker (optional)
Tools
- Sharps or embroidery needle
- Small sharp scissors
- Pins or clips
Steps
- 01
Line up the edges
Place the two edges or layers together, right sides facing if you are joining them, or align the raw edge with the fold if you are binding. Pin every 3 to 4 cm so nothing shifts while you work. For felt, hold the edges level rather than overlapping, because felt does not fray and a flat join looks neater.
- 02
Anchor the thread on the wrong side
Thread a sharps needle with about 40 cm of thread and knot the tail. Bring the needle up through both layers about 5 mm from the edge, so the knot sits on the back. Give a small backstitch to lock the start, because a whipped edge takes a lot of handling.
- 03
Wrap the thread over the edge
Take the needle over the top of the edge and back down through both layers, entering about 3 to 5 mm in from the edge and slightly ahead of where you came up. The thread should cross the raw edge diagonally rather than running parallel to it. Pull it through so the loop lies flat against the edge.
- 04
Space the stitches evenly
Bring the needle up again the same distance ahead, then wrap over the edge once more. Aim for stitches 3 to 5 mm apart that lean at a consistent angle. Even, slanted stitches look deliberate and irregular ones look like a repair, so keep the rhythm steady and check the line every few stitches.
- 05
Cover the whole raw edge
Work your way along the edge until every loose fibre is trapped under the thread wraps. On a fraying fabric, keep the wraps close together so no raw fibre escapes between them. On felt or fleece you can space them more openly for a decorative ladder look.
- 06
Finish off invisibly
After the final wrap, take the needle through to the wrong side and make two small stitches in the same place to lock the thread. Run the tail under a few stitches and trim it. Press the edge lightly from the reverse so the wraps sit flat without being flattened.
Why the diagonal wrap holds the edge
Every wrap is a complete turn of thread around the raw edge. A running stitch only passes through the fabric and leaves the cut fibre ends free to work their way out; a whip stitch encloses them, so a loose fibre has to break the thread to escape. That enclosure, not the tightness of the stitching, is what stops the fray.
The slant is doing structural work. Because each wrap crosses at roughly 45 degrees, the stitches share tension with their neighbours — pull one and the ones either side tighten instead of the thread sliding through. A row of parallel stitches near the edge has nothing to stop a snag running down the line; a row of slanted wraps grips the whole way.
Where you are joining two layers, the wraps also act as a hinge. The thread crosses the seam line rather than running along it, so the join can flex a little without the stitches cracking. On a felt toy limb or an applique edge, that give is the reason a hand whip stitch outlasts a straight machine seam — the felt moves, and a rigid seam tears beside itself.
On felt the first job disappears, because there are no fibres to fray. There the stitch is purely a join and a visible edge, which is why the spacing rule relaxes: with nothing to trap, open wraps are decorative rather than a failure.
Mistakes that show up on the finished edge
The most common fault is a stitch that runs parallel to the edge instead of crossing it diagonally. That is a running stitch that happens to be near the edge, and it traps nothing — fraying continues underneath it. Check by looking at the work from the side: you should see slanted rungs lying across the edge, not a straight dashed line beside it. To correct the angle, enter the needle 3 to 5 mm in from the edge and slightly ahead of where you came up, so the thread has to travel diagonally to get there.
Over-tightening is the second fault and the harder one to undo. Pulling each wrap hard rolls the edge inward and puckers felt and fleece, and those puckers do not press out because the fibres have been crushed. The loop should sit flat and just touch the edge. If the edge starts curling toward the front, loosen the next few wraps, then press from the reverse; if it keeps curling, your needle is too thick for the fabric and the holes are widening.
Doubling the thread for extra strength is a false economy. Two strands make fat, uneven wraps that stand proud of the surface, and they are no stronger than a single strand that is doing its job properly. Strength comes from the enclosure and the spacing, not from the thickness of the thread. Keep it single, and keep the working length to about 40 cm — a longer thread tangles, abrades against itself and thins before it reaches the far end of the edge.
Drifting spacing is the last one, and it always happens in the final third. Judge the line in blocks: after every 5 or 6 stitches, look at the previous four or five wraps together as a group. Evenly slanted wraps read as a deliberate finish; a group that visibly opens up reads as a repair, and on a toy that is the difference between handmade and homemade.
Thread, needle and fabric: what changes when you substitute
All-purpose polyester thread is the default because it stretches slightly and matches the behaviour of polyester felt and fleece. Cotton thread on a synthetic fleece abrades at the wrap — the thread wears through before the fabric does. Matching the thread colour gives you an edge that disappears into the silhouette, which is what you want on a seam. Contrasting colour turns the same stitch into a visible line, which is what you want on an applique.
Embroidery floss is the classic substitution for that decorative look. Use 2 strands of the 6, not all 6 — 6 strands on a felt toy looks like cord and will not lie flat around a curve. Floss is thicker, so open the spacing to 5 to 6 mm and switch the sharps for an embroidery needle with a larger eye. Do not knot floss at the start; run it under the first few wraps on the wrong side instead, because a floss knot at the edge is bulky and works loose.
Needle choice is about the fabric, not the thread. Sharps are short and stiff, which is right for felt where you are pushing through two layers in a tight space. On a dense woven fabric such as calico or a heavy fleece, the same needle leaves visible holes along the edge and your fingers take the strain. A longer needle gives leverage. Whatever you use, the needle should be only just thick enough to carry the thread — on felt the pierced holes never close.
Fabric changes the spacing rule. A stable woven edge frays and needs close wraps, 3 mm rather than 5 mm. Felt and fleece do not fray but are bulky, so the same close spacing builds a ridge along the edge; open to 6 to 8 mm for a flat result. Slippery fabric such as satin needs both closer spacing and a shorter working thread, and even then a whip stitch on satin is decoration rather than a structural seam. Test any water-soluble marker on a scrap of dark fleece first, because on some it ghosts after washing.
Variations: blanket stitch, spaced rungs and two colours
Blanket stitch is the closest relative and the one most worth learning next. It starts exactly like a whip stitch, but the needle goes back into the same hole it came out of and the thread passes under the needle point before you pull through. The result is a row of interlocking L-shapes with a bar running along the edge — firmer and more decorative than a plain wrap.
Choosing between them is mostly about the shape of the edge. Whip stitch is quicker, easier to keep even, and it follows a small curve such as a toy limb or a rounded applique without the L-shapes bunching. Blanket stitch is better on a straight edge or a border you want to read as a stitched trim, and it holds a slightly firmer edge where the fabric is not felt. On a felt toy, the whip stitch reads as a plain corded outline and the blanket stitch reads as a stitched border.
For a different look on felt and fleece, open the spacing to 6 to 8 mm and you get a ladder of rungs rather than a solid edge. Used deliberately it looks like a hand-sewn detail that reads from across the room, which is why it suits toy limbs and bunting where the stitching is meant to be seen rather than hidden. Keep the angle constant or the ladder looks accidental.
For a two-colour edge, change thread every few wraps or work with two needles, alternating as you go. Two strands of a 6-strand floss in contrasting colours give felt ornaments a candy-cane edge. If you are new to the stitch, start with the plain single-colour version on a straight felt edge at 5 mm spacing, then introduce contrast thread — the contrast exposes every uneven wrap, so it is a harder exercise, not an easier one.
Finishing and care so the edge survives handling
End the thread with two small stitches worked into the same spot rather than a knot, then run the tail under three or four of the wraps on the wrong side and trim it flush. A knot at the edge of a soft toy sits on the seam line, works loose, and can pop through to the front where it shows. On felt, hiding the tail under the wraps is the only finish that is genuinely invisible.
Press from the reverse on a low setting — the wool or synthetic setting on most irons — and use no steam on felt, because steam can shrink and distort it and take the wraps with it. Use a pressing cloth on fleece, which scorches easily. You want the wraps to settle flat against the edge, not to be flattened into the fabric, so keep the iron moving rather than pressing hard on one spot.
Hand wash cool with a mild soap and do not wring; a whipped felt edge squeezed in a machine wash will felt further and tighten around the wraps, distorting the seam you just set. Dry flat and reshape while damp. If the piece is a toy that will be washed often, treat the whip stitch as the decorative outer edge and put a machine-sewn inner seam behind it — the whip stitch alone will not survive repeated machine cycles.
The wraps are the point of wear, especially where a limb is gripped or an edge is rubbed, so check them every few months. If a wrap has gone slack, add a stitch beside it rather than pulling it tight — pulling stretches the holes and the edge loosens further. Because the stitch only pierces the fabric on the reverse, the front stays clean throughout, which is the reason it is the go-to finish for decorative edges that will be seen.
Frequently asked questions
- Will a whip stitch stop a woven fabric edge from fraying completely?
- It stops fraying along the stitched section, because the fibre ends are trapped under the wraps and can only escape by breaking the thread. Past the last stitch, the edge frays as normal. For a woven edge that gets handled, keep the wraps close at about 3 mm and use a matching polyester thread; 5 mm spacing that looks tidy on felt leaves gaps where short fibres can work free. A whip stitch is an edge finish, not a substitute for a fully enclosed seam.
- What is the difference between a whip stitch and a blanket stitch, and which should I use on a felt toy?
- Both wrap the thread over the edge. In a blanket stitch the needle returns through the same hole it came out of and the thread loops under the needle point, which makes interlocking L-shapes with a bar along the edge. Blanket stitch is firmer and more decorative; whip stitch is faster and easier to keep even. Use whip stitch on small curved seams such as toy limbs, where L-shapes bunch on the curve, and blanket stitch on straight edges and borders you want to read as a stitched trim.
- My wraps are uneven and the edge keeps curling. What am I doing wrong?
- Curling almost always means the tension is too high, not that the spacing is wrong. Each wrap should sit flat and just touch the edge; if it is compressing the fabric, the edge rolls toward the front and felt puckers, and those puckers do not press out. Loosen the next few wraps and press from the reverse on a low setting. Uneven spacing is usually drift rather than a bad start — check the line after every 5 or 6 stitches by looking at the last four or five wraps together. If curling continues with light tension, your needle is too thick and the enlarged holes are letting the fabric sag.
- Can I sew a whip stitch on a machine?
- No — a machine cannot carry the thread over the raw edge, so what it does instead is a narrow zigzag or overcast stitch that crosses the edge and lies flat. That is faster and perfectly serviceable on a folded edge or one that will be enclosed, but on felt and fleece it compresses the edge and loses the loft that makes the hand version sit proud. The slanted, hand-sewn look is the whole point on applique and toys, so reserve the machine for edges that will not be seen.