The Jack Adams Old School 2.5 Jockstrap has a wide waistband. A staple of the old school jock, it's been improved. Jack Adams made it a full 2.5-inches and included a softness missing from the jockstraps of the past. Even the rear straps have been widened giving even greater support along with a nice lift. Together, the wide waistband and rear straps provide a snug fit and durability needed for a hard workout on or off the field. Made from 70% Polyester, 15% Cotton and 15% Rubber.