Reference: 397784 The RS THERMOBELT is a classic Nordic ski hydration belt that continues to be a favorite. It fits virtually any skier comfortably, can carry up to 700 ML of hydration, and fluids are easily accessed. Plus, a large storage compartment keeps personal items secure while training. Technologies Fabrics PVC free 3D mesh 210D Double Ripstop, Waterproof 500mm 600D Polyester, Waterproof 500mm Back systems Padded backpanel Pockets & compartments 1 zipped back pocket Inside pocket Hydration Insulated sleeve New pop valve cap Insulated removable container (900ml/30oz) with large access Belt Adjustable belt with large winter buckle Benefits Hydration at the right temperature An insulated container maintains the fluid's temperature. Ease of use An on/off valve makes accessing hydration easier and more efficient. The fluid container's wide opening makes it easier to clean. Comfortable Designed to accommodate different body types.