Tuned for travel, the AirPorter is a backpack travel cover to keep your backpacking, trekking or hiking pack protected while in transit, be it by taxi, train or plane. Its lockable zipper provides added security and an improved shoulder strap makes lugging it to and fro a breeze. Comes in three sizes. Features Improved shoulder strap function, left/right Protects backpacks when travelling or checking in at airports Works as a packable duffel to carry extra gear Large lockable zipper opening for easy loading and security Top and side grab handles ID card window Packs into itself bluesign® approved main body fabrics GRS-certified 100% recycled main body fabrics All DWR treatments made without PFAS Specs Small fits up to 50L, Medium fits 45-75L, and Large fits 70-110L Size Weight Capacity Dimensions Small 376 g 90L 77H x 35W x 32D cm Medium 430 g 139L 87H x 39W x 37D cm Large 447 g 187L 97H x 47W x 38D cm Materials: bluesign® approved 100% recycled 210D high-tenacity double ripstop nylon, DWR treatments made without PFAS