Built with a Flex Mono Mesh compression waist belt, the Ultimate Direction Ultra Race Belt 5.0 delivers a secure and breathable fit. Packed full of stabilised storage features, the Ultimate Direction Ultra Race Belt 5.0 features a weather resistant zip-secure rear pocket, a low profile front with key pocket, and a zippered secure phone compatible pocket. Ensuring you stay hydrated as you run, the Ultimate Direction Race Belt 5.0 also comes equipped with two 500ml form-fitting Body Bottles. 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