Features:* Built with 500D Nylon,Two way opening YKK zipper and Superior PVC clear film.* Front clear window designed for contents identification* Back hook panel designed for use in all backpacks as long as has loop panel to attach.* Large Size 8.5 x 7.5 x 2 Inches / 21.5 x 19 x 5 CM
* Small Size 8.5 x 4.5 x 2 Inches / 21.5 x 11.4 x 5 CM
* Color: BlackPackage Contents:* Krydex Clear Top Insert * 1