Billabong Men's Ally Surf Backpack 100% Polyester Imported tricot lining Hand Wash 4" high 20" wide Large main compartments with roll top closure. Tricot lined sunglass pocket Reinforced padded back panel. Drink bottle carbine attachment Padded ergonomic back straps. Padded mesh back panels. Metallic reflective printed logo. Woven label Volume: 31.5 liters Size: 21.25 (h) x 10 (w) x 7 (cold)