The Medium Transport Packs are constructed of rugged heavyweight denier polyester, water repellent lining and Molle compatible webbing. The large main compartment features a zippered pouch, mesh pocket and is hydration bladder compatible, the pack also has three additional pockets and storage compartments. The extensive storage options make the pack ideal for carrying gear or filling it with your entire Bug Out Bag Supplies. For added comfort, the tactical backpack has been equipped with padded back and shoulder straps with breathable mesh backing. Additional features include a top carry handle and top & side adjustable web straps.