Seattle Sports H2Zero Opti-Dry Value Bag, Pack of 2 (Clear, Small/Large) This supertough, superclear bag is constructed with heavyduty clear vinyl and an abrasion-resistant bottom. We offer a two-pack with a Large and Small sized bag. The small bag measures 15 inches tall with a 7.5 inch diameter (10 liters). The large bag measures 24 inches tall with a 11.5 inch diameter (41 liters). Our H2Zerobags give you waterproof protection at an affordable price.