Constructed from heavy-duty waterproof tarpaulin Durable heat welded seams Heavy-duty ITW quick-release buckles YKK water resistant zippered external pocket perfect for gloves or spare parts Roll down top design creates waterproof seal Coated tarpaulin material is easy to spray and wipe clean Dual compression straps for extra secure closure or for storing spare gear externally Universal mounting. BAG DRY ADV1 TRAIL PK 40L