Navy SEAL and Special Ops tested tough! This bag starts at 2383 cubic inches and expands to a full 3920 cubic inches. Loads of features: heavy duty zippers and compression straps, waterproof fabric of constructed of 600 Denier poly material with a double coated PVC lining for strength and durability; large main compartment with expansion feature; multiple gear pockets and MOLLE loops; mesh ID pocket. To support the weight there is a load bearing belt strap, padded shoulder straps with retainer chest strap and a padded back panel to protect you from your gear. Perfect traveling bag or if you just need to vanish into the night. Imported. Product Size: 20.5" x 15" x 7.75" to 12.75"