This exercise mat provides the utmost in comfort and cleanliness...Mat features triple-layer construction of high-density foam on the outside for long-lasting durability, and a softer center layer for comfort...Cross-linked polyethylene foam will not absorb moisture and is easily wiped clean with a damp cloth... Lightweight, convenient locker mat folds up to just 12" x 24" x 3" for easy storage in a locker, under a bed or behind a door... Comes with easy-to-carry shoulder strap..3/4" (flat) x 24" x 48".