How to Choose a Human-Hair Lace Wig Online: Lace Type, Density, Cap Size and Returns (What to Check)

A human-hair lace wig is a big purchase, and online listings are full of shorthand: 13x4, 13x6, HD lace, 180% density, glueless, pre-plucked. Getting one of those wrong can mean a hairline that will not lay flat, a wig that looks too thin or too bulky, or a cap that slips. This guide explains what each spec means, how to measure your head and what to check in the shipping and return terms before you order.

Know the lace types

The lace is the sheer mesh at the front where hair is tied in by hand, which is what makes a hairline look natural. Listings describe it by size and material:

• Closure wigs (4x4, 5x5, 6x5): a small lace patch at the top of the head. They are cheaper and easier to wear, but you can only part the hair within that patch.
• Lace front wigs (13x4, 13x6): lace runs ear to ear across the front (13 inches) and 4 to 6 inches back. You get a natural hairline and can part deep to the side. A 13x6 gives more parting room than a 13x4.
• 360 and full lace wigs: lace all around the perimeter or across the whole cap, allowing high ponytails and updos. They cost more and are more delicate.
• Transparent versus HD lace: HD lace is usually thinner and less visible on the skin, but more fragile. Transparent or standard lace is sturdier. Look at close-up photos of the hairline on the listing.

Decide between glueless and glued

Glueless wigs hold with an adjustable elastic band, a drawstring, combs and sometimes small clips, and many now come with pre-cut lace so you do not need to trim it yourself. They are faster to put on and kinder to your edges, which makes them the usual choice for beginners. Glued or taped installs can look flatter at the hairline and stay put in wind and heat, but they take practice and need proper removal. Many wearers start glueless and add a little adhesive or a wig grip band only if they need extra hold.

Choose density and length

Density describes how much hair is on the cap. As a rough guide:

• 130% to 150%: light and natural, closest to an average head of hair.
• 180%: a fuller look, the most common choice for long wigs.
• 200% to 250% and up: very full and glamorous, but heavier and warmer to wear.

Longer wigs often look thinner at the ends at the same density, so many buyers go up a level for 26 inches and longer. Lengths on curly and wavy wigs are usually measured when stretched straight, so a 20-inch deep wave wig will sit noticeably shorter. Remember that weight and heat increase with both density and length, which matters if you will wear the wig all day.

Measure your head for the cap

Most wigs come in an average cap of about 22 to 22.5 inches around, with adjustable straps. Measure with a soft tape:

• Circumference: around your head along the hairline, behind the ears and across the nape.
• Front to nape: from the front hairline over the top of the head to the nape.
• Ear to ear: across the top of the head from one ear to the other.

Measure over your braids or a wig cap if that is how you will wear it. If you fall outside the average, look for small or large caps, or a custom-cap option, and check whether custom wigs can be returned; at many stores they cannot. Read the brand's own size chart rather than assuming small, medium and large mean the same thing everywhere.

Read hair type and grade labels carefully

"100% human hair" means the wig can usually be heat styled and, with care, colored. Terms such as virgin hair, Remy and grades like 10A or 12A are used differently by different sellers. There is no single industry standard for the letter grades, so treat them as a store's own ranking and look instead at concrete details: weight per bundle in grams, whether the hair is "double drawn" (more full-length strands), knot type, and photos of the ends. Claims about how long a wig lasts depend on how often you wear, wash and heat style it. For an example of a wig store that uses these labels and has strict return rules, see our Arabella Hair review.

Check shipping and return rules before you order

Wig returns are often stricter than clothing returns, because hair cannot be resold once it is worn or altered. Before you check out, find:

• How soon you must report a problem; some stores allow only 24 to 48 hours from delivery
• The return window, and whether it counts from purchase or delivery
• Conditions such as unwashed hair, uncut lace and original packaging
• Restocking or shipping deductions for change-of-mind returns
• Whether sale, clearance and customized wigs are final sale
• Where the wig ships from, and how long customs might add

When the wig arrives, try it on over a wig cap without cutting the lace or using glue, check the density and hairline in daylight, and photograph anything wrong right away.

A quick checklist

• Choose a lace size that matches how you want to part and style the hair
• Decide between glueless and glued, and check for pre-cut lace and an adjustable band
• Pick a density that suits the length and how full you want it
• Measure circumference, front to nape and ear to ear, and compare with the brand's chart
• Look past grade labels to weight, photos and hair details
• Read the reporting deadline, return window, conditions and final-sale rules
• Try it on uncut and unglued as soon as it arrives