A cap wig is any wig built on a cap structure that sits on the head. The cap holds the hair, straps, combs, lace, wefts, mono areas, and overall shape.
Why the cap matters
The cap affects comfort, heat, realism, price, and security. Two wigs can look similar outside but feel completely different because of the cap.
Common cap features
Standard wefts, lace fronts, monofilament tops, hand-tied sections, open caps, and adjustable straps are all cap-construction details.
Bottom line
A cap wig is a wig built on a wearable base. Understanding that base helps you shop smarter.