The back panel has PALS compatible mounts. You can slip your backpack's side compression straps under the front mounted webbing. This 12 liter model has a 5 wide PALS mount. This size is the best choice for 70 to 100 liter packs. The PALS mounts leave a 13 cm wide corridor between the pocket and your pack, enabling carrying fishing poles, a hatchet etc. - Main fabric: 500 denier Cordura, 100% polyamide - Liner: 210 denier polyamide - 25 mm wide polyester webbing - Simple inner pocket - Zipper with flap - Inner D ring for clipping small items to - Flat inner pocket at the rear - Bottom and sides are reinforced with a liner fabric - PALS compatible - Grommet and hole at the bottom for draining - 5 year guarantee against flaws in materials and manufacturing - Made in Finland and Estonia Alternative packing examples of use by the manufacturer: - Large tarp, hammock, quilt and accessories - Light puffer jacket and pants - Trangia 27 series stove, fuel and food - Jetboil, gas cartridg