Features of the Mountain Hardwear Scrambler 35 Backpack 4-Layer Dimension-Polyant fabric is durable, light and waterproof making for a rugged but lightweight and water-resistant pack Contoured ventilated back panel with lightweight frame sheet supports loads Compression strap combined with fully removable floating lid creates stable exterior rope carry or overload option Flat base design allows easier loading while padded base construction protects contents and increases pack durability Dual Density shoulder straps provide ample support Internal gear loop Dual side bottle pockets Forward-Access gear loop unique shape keeps clipped gear easily reachable Hydration reservoir compatible Full length Dual daisy chains Fabric Details Dimension-Polyant VX21 Terrain X pac (57% Nylon, 43% Polyester)