The roll-top Possibles Pouch is RF-welded, 100% waterproof and dust proof with a roomy 3-liter capacity. Enough room to carry a full set of tire irons, a spare tube, 2-liter fuel canister or anything else riders might need to secure any vehicle for adventure. Adds easy access storage capacity to Giant Loop saddle bags and panniers, as well as anchoring to engine guards, crash bars, tail racks and any other secure attachment point.