UA Storm technology delivers an element-battling, highly water-resistant finish. Cupron treatment kills odor causing bacteria. Wash bag after use to replenish anti-odor capabilities . Plastic sternum clip keeps straps securely in place. Easy-cinch drawcord closure. Dimensions: 2″ x 15.4″ x 20.9″ (Width x Length x Height). Volume: 1,220.48 Cubic In. / 20 L.