If you prefer not to wear a hydration vest, Salomon's stretch High Pulse belt is an excellent alternative for distances up to a marathon. Its Salomon's widest belt, offering maximum stability and ample storage for gels, a phone, and a 500ml soft flask.  Pockets & compartments: Multiple expandable pockets Belt - tubular construction: A flat construction without buckles fits precisely, using stretch fabrics and stitching to reduce bouncing and improve stability Carrying system - diagonal straps: Two diagonal straps with silicone grip provide extra storage on the go for a jacket or poles Miscellaneous: Reflective details Fabrics: 4 way stretch Fabrics: Elastic jersey Sustainability: PFC-free Weight 78 g Dimensions Height: 380 mm Width: 160 mm Depth: 10 mm Materials Back body: 87% Polyamide, 13% elastane Body: 85% Polyamide, 15% elastane