A skull cap is a close-fitting, brimless hat you can make from two fabric pieces
A skull cap (also called a beanie or skullcap) is one of the simplest hats to sew because it uses only two curved panels that you stitch together, then fold and hem the bottom edge. The whole project takes two to four hours depending on whether you sew by hand or machine, and you need only basic supplies: fabric, thread, scissors, pins, and a needle or sewing machine. The finished cap sits snug on the head without a brim, making it useful for warmth, style, or religious wear.
The key to a well-fitting skull cap is choosing the right fabric weight and getting the two panels to curve smoothly when you join them. Knit fabrics like jersey or fleece are more forgiving than woven cotton because they stretch slightly, but woven fabric works too if you're careful with your seam allowance. This guide walks you through measuring, cutting, sewing, and finishing a skull cap that fits your head.
Key Takeaways
- Measure around your head at the widest point and subtract one inch for a snug fit, then use that number to find or draft a pattern.
- Cut two identical curved panels from your chosen fabric, making sure the grain line runs from the top of the cap down toward the hem.
- Sew the two panels together along the curved seams using a straight stitch, then trim the seam allowance and finish the raw edges with a zigzag stitch or pinking shears.
- Fold the bottom edge inward by half an inch, press it flat, then stitch it down by hand or machine to create a clean hem.
- Try the cap on before you finish the hem completely, because adjusting the fit at that stage is easier than after the final stitches are locked.
Measure your head and choose or draft a pattern
Start by measuring around your head at the widest point—usually just above your ears and across your forehead. Write down that number in inches. A skull cap should fit snugly without cutting off circulation, so subtract one inch from your measurement. For example, if your head measures 22 inches around, your cap should be 21 inches around the bottom edge.
You can find free skull cap patterns online through sites like Etsy, Craftsy, or sewing blogs, or you can buy a printed pattern from a fabric store. Look for patterns labeled "beanie," "skullcap," or "straightforward hat." Most patterns come in multiple sizes, so choose the one closest to your measurement. If you cannot find a pattern that matches, you can draft one yourself by drawing two identical curved panels on paper—each panel should be roughly half your head circumference wide at the bottom and taper to a point or small curve at the top.
Select fabric and gather your supplies
Knit fabrics like jersey, fleece, or interlock are the easiest choice for a first skull cap because they stretch and forgive small sewing mistakes. Woven fabrics like cotton quilting cotton or linen work too, but they require more precision. Choose a fabric weight appropriate to your climate: lightweight jersey for summer, fleece or wool for winter. You need roughly half a yard of fabric for most adult skull caps, though a child's cap uses less.
Gather these supplies before you start: your pattern, fabric, thread that matches your fabric color, scissors or a rotary cutter, pins, a measuring tape, a needle (hand-sewing needle or machine needle depending on your method), and an iron for pressing seams. If you're sewing by machine, make sure your machine is threaded and in working order. If you're sewing by hand, use a needle threader if you have one—it makes threading easier and faster.
Cut two identical panels from your fabric
Lay your fabric flat on a clean, hard surface like a table or cutting mat. If your fabric is folded, unfold it so you can see the full width. Place your pattern pieces on the fabric and pin them down at the corners and edges so they don't shift while you cut. Make sure the grain line marked on your pattern (usually a straight arrow) runs from the top of the cap downward toward the hem—this helps the fabric drape correctly and prevents the cap from twisting.
Cut around the pattern pieces slowly and carefully using sharp scissors or a rotary cutter. Cut two identical panels. Mark the top point of each panel with a small pencil mark or pin so you know which end is which when you're ready to sew. If your fabric has a nap (like velvet or fleece that looks different depending on which direction you brush it), make sure both panels are cut in the same direction so the finished cap looks uniform.
Sew the two panels together along the curved seams
Place the two fabric panels with the right sides (the pretty sides) facing each other. Pin along both curved seams, starting at the top point and working down toward the bottom edge. Space your pins about two inches apart so the fabric doesn't shift while you sew. If you're sewing by machine, use a straight stitch with a stitch length of 2.0 to 2.5 millimeters and sew slowly along both seams, removing pins as you approach them. If you're sewing by hand, use a backstitch and make your stitches small and even—about one-eighth inch apart.
After you've sewn both seams, try the cap on inside-out to check the fit. It should feel snug but not tight enough to cause a headache. If it's too loose, you can take in the seams slightly by sewing a new line one-quarter inch closer to the edge, then trimming away the old seam. If it's too tight, you may need to start over with a larger pattern. Once you're satisfied with the fit, trim the seam allowance to one-quarter inch using scissors, cutting away the extra fabric close to your stitching line.
Finish the raw edges and turn the cap right-side out
Raw fabric edges fray over time, so finish them to make your cap last longer. If you have a sewing machine with a zigzag stitch, sew along both seams with a zigzag pattern to seal the edges. If you don't have a machine, use pinking shears (scissors with a zigzag blade) to trim the seam allowance—the zigzag edge resists fraying better than a straight cut. If you have neither, a straightforward straight stitch one-eighth inch away from the seam edge also works.
Turn the cap right-side out through the open bottom edge. Use a blunt tool like a wooden spoon handle or chopstick to gently push out the top point so it's fully rounded. Try the cap on again to confirm the fit feels right. The seams should sit smoothly against your head without bunching or pulling.
Fold, press, and hem the bottom edge
Fold the raw bottom edge of the cap inward by half an inch all the way around. Use pins to hold the fold in place, spacing them about two inches apart. Press the fold flat with an iron set to the appropriate temperature for your fabric—check the fabric care label if you're unsure. A pressed fold is easier to stitch neatly and looks more finished.
Stitch the hem down by hand or machine. If you're using a machine, use a straight stitch and sew close to the folded edge, removing pins as you go. If you're sewing by hand, use a ladder stitch (also called an invisible stitch) by bringing your needle up through the fold, across to the cap body, then back through the fold, creating stitches that are mostly hidden inside the fold. Make your stitches small and even, about one-quarter inch apart. Leave a one-inch opening in the hem so you can try the cap on one more time before you close it completely.
Try on, adjust, and finish
Put the cap on and check how it feels. It should sit level on your head without tilting forward or backward, and the hem should sit just above your ears or eyebrows depending on the style you want. If the fit is off, you can still adjust it by taking in or letting out the seams slightly before you close the hem opening. Once you're happy with the fit, stitch the one-inch opening closed using the same stitch you used for the rest of the hem.
Trim any loose threads with scissors. If you used a hand-sewing needle, weave the thread tail back through a few stitches inside the cap and trim it close. Your skull cap is now finished and ready to wear.
Frequently Asked Questions
Can I make a skull cap without a pattern?
Yes. Measure your head circumference, subtract one inch, then divide by two. Draw two identical curved panels on paper, each roughly that width at the base and tapering to a point at the top. Test the pattern on scrap fabric first before cutting your final fabric.
What's the difference between a skull cap and a beanie?
A skull cap is typically shorter and fits closer to the head, while a beanie is taller and often has a folded cuff at the bottom. Both use the same basic two-panel construction, so you can make either one by adjusting how tall you cut your panels.
Can I sew a skull cap entirely by hand?
Yes. Use a backstitch for the seams and a ladder stitch for the hem. Hand sewing takes longer—usually four to six hours—but produces the same finished result as a machine. Use thread that matches your fabric and make your stitches small and even.
What should I do if my seams are puckering?
Puckering usually means your thread tension is too tight or you're pulling the fabric while sewing. Loosen the tension slightly on your machine, sew more slowly, and let the machine feed the fabric instead of pushing it. If the damage is done, you can pick out the stitches and resew that section.
How do I make the cap fit a child?
Measure the child's head the same way you'd measure an adult's, then find or draft a pattern for that size. Children's heads are typically smaller in circumference but not proportionally different in shape, so the basic two-panel construction works the same way.