Cuff

A cuff is a layer of fabric at the lower edge of the sleeve of a garment (shirt, coat, jacket, etc.)

Except on casual attire, shirt cuffs are generally divided down one edge and then fastened together, so they can let a hand through and then fit more snugly around the wrist.

Some sweaters and athletic garments (both tops and pants) have cuffs that either contain elastic or are woven so as to stretch around a hand or foot and still fit snugly, accomplishing the same purpose.

Trousers with turn-ups ("cuffs" in American English and elsewhere), after hemming, are rolled outward and sometimes pressed or stitched into place.

Parents may also use cuffs to extend the life of children's clothes by buying pants that are too long, cuffing the leg and then unrolling it as the child grows.