From the manufacturer: polyurethane fabric is durable and easy to clean (aka locker room friendly) secure exterior pocket designed to hold a 15in (38cm) laptop removable, stowable mat strap lets you keep your mat close exterior, quick-access pocket helps keep your phone close at hand interior pocketing system makes it easy to keep your waterbottle, shoes and sweaty gear organized tested to hold 50 lbs (22kg) imported Measures about 15" by 14" by 8", roomy Pre-owned, good condition used with some light visible wear, base of handles, round trim at base, a few stray marks, cosmetic imperfections a lot of use left in this We store our items in a smoke free warehouse