We have those cap constructions now:
Cap1 is regular full swiss lace cap, there is stretch lace at the middle, other area is full swiss lace;
Cap2 is glueless full lace wig, there are straps at back, and 6 combs sewed.
you don't need to use glue, it is easy to wear and remove;
Silk top gives more natural scalp, just like the hair is growing from your own head, very realistic, so most love silk top wigs!
Lace front cap is glueless, there is about 2-3 inches swiss lace in the front, and machine made wefts at the back, there is straps and 3 combs at the back;
360 wig cap is gluess, the perimeter is lace, the middle is weaves sewn in, comes with 4 combs and one strap, no need to glue