Rightline Gear Cargo Dry Bags - Adjustable Size 100% Waterproof Storage for Your Truck Bed or Hitch Rack! Unlike rigid rectangular truck chests, Rightline Gear Cargo Dry Bags are designed to accommodate large, odd-shaped gear with their convenient roll-down top that adjusts the bag to the size of your load, and quickly creates a waterproof seal when you secure the bag's quick release buckle. Each bag is constructed of cut, tear, and abrasion resistant Para-Shield material, with tape sealed seams to keep your gear secure, clean, and 100% dry. Heavy duty straps secure the bags in place. After use, the bags fold down into a small stuff sack that can conveniently be stored behind or beneath the vehicle's seats. Capacity: 17 cu ft each bag Dimensions: 30in L x 20in W x 55in H each bag (2) bags fit side-by-side on truck beds and most hitch racks Includes: (2) bags, (4) attachments straps, stuff sack, and set up guide