EVA panel in front to protect knobs of the OP-1 belt loop fits up to 35 mm wide belt shell fabric: tear and abrasion resistant, nylon 66. treated with fire retardant, and backed with pu for a 3000 mm water repellent rating lined in dry, water repellent japanese nylon hardware in premium, custom designed aluminum alloy 7075-T6 dimensions: 125 mm x 305 mm x 30 mm