We have 3 sizes for your option, P - petite size, A - average size, L- large size. Bellow is the size details for your reference. Our wigs have adjustable straps that give up to 1.5 inches so that you can achieve more comfortable and secure fit.

CAP SIZECIRCUMFERENCEFRONT TO BACKSIDE TO SIDE ACROSS FOREHEADSIDE TO SIDE OVER TOPTEMPLE TO TEMPLE ACROSS BACKNAPE OF NECK
Petite (P) 21-21.5" 13-13.5" 11" 11.5-11.75" 13-13.5" 4.5-5"
Average (A) 22-22.5" 14-14.5" 12-12.5" 12.5-13" 14.5-15" 5-5.5"
Large(L) 23-23.5" 15-15.5" 12.5-13" 13-13.5" 15-15.5" 5.5-6"