We finish our bags with a triple layer of polyurethane for water resistance and add a final layer of DuPont Teflon fabric protection to repel the elements; only the best components and designs are used We exclusively use complete YKK zippers and sliders unlike our competitors that attach YKK zippers to generic zippers We add military grade nylon webbing for straps, handles and modular attachment points; Genuine Duraflex buckles and hardware ensure stability and functionality Starting with large, unhemmed panels made of 1000 denier nylon, we carefully reinforce each stress point with composite thread; no unnecessary seams or polyester parts are used Folded 3.5 inches long x 2.25 inches wide x 1.5 inches thick; open: 4 inches diameter, 8 inches high; total volume: 100 cu. In belt: integrated closed loop