Mat Carry Bag - Durable, water-resistant black nylon material. Bag dimensions (inside): 14"; H x 37.75"; W x 7"; D. Extra internal compartment for accessories (13"; H x 6.75"; W x 2.75"; D), secured with Velcro strap. Adjustable shoulder strap for easy carrying. Room for multiple mats inside: (1) mat of any size (8'x20', 8'x16', or 9'x12'); OR (1) mat 8'x16' or 8'x20' PLUS (1) mat 9'x12'; OR (2) mats 9'x12'.