Crown Sporting Goods Yoga Mat Cargo Carrier with Adjustable Straps (Black) Nylon 100% Imported Adjustable straps securely lock in any yoga mat with a diameter up to 6.5". That's a perfect fit for any 8mm mat, or for up to three 3mm mats! Handy cargo pocket stores your phone, wallet, bottles of water, gloves or socksanything you need to need to keep stored at the studio or on the go Long lasting, lightweight nylon canvas is easy to clean and maintain Versatile nylon handles can be carried by hand or slung over the shoulder Hangs flat or folds down nearly flat for easy storage when not in use