Features Flex Mono Mesh compression waist belt provides secure and breathable fit Centered weather resistant zip-secure rear pocket Dual bottle pockets for carrying up to 1L of hydration Low profile front with key pocket Pair with the Adventure pocket to carry everything you need on your next adventure Phone compatible with zip secure pocket Specifications Weight: 98 g / 3.4 oz Volume: 2.9L / 177 in3 Size: One Size 26”- 40” / 66 cm - 102 cm Bottles: 2 Body Bottle™ II 500 Materials: 150g Flex Mono Mesh, MicroMono Mesh, 20D Nylon 66 sill/pu, 4-way stretch nylon/elastane with ripstop for durability