What a Leave-Out Sew-In Is and Why You'd Use One
A leave-out sew-in is a protective hairstyle where you sew wefted hair (hair sewn onto a track) into your natural hair, but deliberately leave out a section of your own hair at the front, sides, or edges. That left-out section frames your face and blends with the sewn-in hair, creating a more natural-looking hairline and reducing tension on your edges.
The leave-out serves two purposes: it looks more realistic than a fully sewn hairline, and it protects the hair you leave out from the glue, heat, or constant friction that comes with wearing a full sew-in. Many people choose leave-outs when they want their edges to show, when they're growing out their hairline, or when they want to style the front of their hair differently than the bulk of the sew-in.
Key Takeaways
- Decide which section to leave out—usually the front hairline, temples, or side parts—before you start braiding.
- Braid your hair in cornrows, leaving the designated section unbraided so the sewn-in hair can attach to the braids underneath.
- Sew the wefted hair onto the braids using a needle and thread, starting from the back and working toward the front.
- Style and blend your leave-out hair with the sewn-in hair using heat tools, products, or protective styling.
- Maintain both the braids underneath and the leave-out hair by moisturizing regularly and avoiding excessive tension.
Choosing Where to Leave Out Your Hair
The most common leave-out placement is a section across the front hairline, roughly from temple to temple. This creates a natural frame and lets you show off your edges or baby hairs. Some people leave out the sides instead, or a small section at the crown if they want to add volume or height at the top.
Think about your face shape, the look you want, and how much of your own hair you're comfortable styling separately. If you're leaving out the front, you'll need to style that section daily to blend it with the sewn-in hair. If you leave out the sides, you have more flexibility but less of a natural hairline showing. Mark the section with clips or a comb before you start braiding so you don't accidentally braid over it.
Preparing and Braiding Your Hair for the Sew-In
Start with clean, dry or damp hair. Detangle thoroughly with a wide-tooth comb or detangling brush, working from the ends up to the roots. This prevents breakage and makes braiding easier. If your hair is very thick or long, you may want to blow-dry it straight or explore a light oil to make it more manageable.
Divide your hair into sections using clips. The braided sections will be where the wefted hair attaches, so plan your braids to cover the scalp except for your leave-out area. Braid in straight lines from the nape of your neck toward the crown, or in a pattern that suits the style you want. Make the braids tight enough to hold the wefted hair securely, but not so tight that they pull on your scalp—tension causes hair loss and scalp pain.
Leave the designated section completely unbraided. This hair will sit on top of the sewn-in hair and blend with it, so it needs to be free to move and style. Clip it up out of the way while you finish braiding the rest of your head.
Sewing the Wefted Hair Onto Your Braids
Once your braids are done, you're ready to attach the wefted hair. Use a curved needle and strong thread (many people use thread that matches their hair color or use fishing line for invisibility). Start at the nape of your neck, at the back of your head, and work forward toward the front—this way, if you need to adjust anything, you can do it as you go.
Lift a braid and position the weft (the sewn edge of the hair bundle) against it. Push the needle through the weft and then through the braid, creating a stitch that locks the weft in place. Move along the length of the braid, stitching every half-inch or so. Knot off the thread at the end of each braid or every few stitches to prevent the whole row from coming loose if one stitch breaks.
As you move forward, leave space above your leave-out section. Do not sew any wefts directly onto the braids that sit under your leave-out hair. The wefted hair should stop just before the leave-out begins, so there's room for your natural hair to sit on top and blend.
Blending and Styling Your Leave-Out Hair
Once the sew-in is installed, your leave-out hair will sit on top of the sewn-in hair at the front or sides. To blend them, you'll typically style both together using heat tools, products, or braiding. Many people flat-iron or curl their leave-out hair to match the texture of the sewn-in hair, or they braid the leave-out into the sewn-in hair for a seamless look.
You can also leave your leave-out hair loose and style it separately—straightened, curled, twisted, or braided—depending on the overall look you want. The key is making sure the leave-out doesn't look disconnected from the rest of the style. Use edge control, gel, or mousse to smooth the leave-out hair where it meets the sewn-in hair, and use the same styling method (heat, braids, or products) on both sections so they blend visually.
Caring for Your Braids and Leave-Out Hair
Your braids underneath need moisture and care just like any protective style. Every few days, spray your braids with a light water and oil mixture or a braid spray to keep them from drying out. Focus on the scalp and the roots of your braids. Avoid heavy products that build up and make your scalp itchy.
Your leave-out hair needs the same care as hair you'd wear loose. Moisturize it regularly with a leave-in conditioner or hair oil, especially at the ends. Avoid excessive heat styling, which can damage the hair and make it look different from the sewn-in hair. Sleep on a silk or satin pillowcase or wrap your leave-out in a silk scarf to reduce frizz and breakage.
Check your braids and the attachment points regularly for looseness or discomfort. If a braid feels too tight, loosen it gently or have someone help you adjust it. Tightness causes traction alopecia (hair loss from constant pulling), which is permanent if it goes on too long. A sew-in should feel find but not painful.
How Long a Leave-Out Sew-In Lasts and When to Remove It
A sew-in with a leave-out typically lasts 6 to 8 weeks, depending on how fast your hair grows and how well you maintain it. As your natural hair grows, the braids move away from your scalp, and the attachment points may loosen. You may also notice your leave-out hair growing out and looking noticeably different in length from the sewn-in hair.
When you're ready to remove the sew-in, cut or carefully unravel the thread holding each weft to your braids. Take your time—rushing causes breakage. Once the wefts are off, gently unravel your braids. Detangle your hair thoroughly, wash it, and deep condition it to restore moisture. Your hair may shed more than usual after removal because of the shed hair that accumulated in the braids, but this is normal.
Frequently Asked Questions
Can I wash my hair with a leave-out sew-in?
Yes, but carefully. You can wash your leave-out hair normally, but avoid getting the braids and attachment points soaking wet. Use a spray bottle to mist your braids with water and shampoo, then rinse gently. Some people use a dry shampoo or braid spray instead of washing to extend the style's life.
What if my leave-out hair is a different texture than the sewn-in hair?
You can blend different textures by styling them the same way. Flat-iron both, curl both, or braid both together. Using the same products and heat tools on both sections makes them look intentional rather than mismatched. You can also choose sewn-in hair that's closer to your natural texture to begin with.
How do I prevent my leave-out from looking thin or sparse?
Leave out more hair than you think you need—a thicker section blends better and looks fuller. Use edge control and styling products to smooth and shape your leave-out, and avoid pulling it too tightly or styling it in a way that exposes thin spots. If your edges are fragile, a leave-out sew-in is actually a good protective option because it takes tension off your hairline.
Can I reuse the sewn-in hair after I take the sew-in down?
Yes, if you remove it carefully and the hair is still in good condition. Gently cut or unravel the thread, then wash and condition the hair. You can resew it onto new braids for your next install, though the hair may not last as many installs as new hair would.