Drawstring closure 18 shoulder drop 50% Polyester 50% NYLON Mesh backpack Bag! Shoulder straps for backpack carry, Built-in 5.5X5.5 inch zipper bag. 23 inch wide and 18 inch Tall. Durable and breathable mesh gear bag. Versatile and functional that can be used to carry sports equipment,balls,Diving,Yoga,Full face,Swimming,Travel Gym Gear & Equipment.