SHIRT LOCK was designed with the active sports professional in mind. Shirt Lock keeps your shirt tucked in all day. Looking your best in uniform is important especially if you want to command greater respect. The SHIRT LOCK undergarment belt is made of a durable nylon hook on hook material that grips the nap of your shirt and pants locking them together. The Shirt Lock goes over your shirt, around your waist inside your pants. SHIRT LOCK is proven to be an effective alternative to suspenders, shirt stays and the rubber belt and flex belt. Work or Play Shirt Lock keeps you looking sharp all day.