The 'First Wave' reservoir is built for the toughest environments with 0.4mm thick Thermo Polyurethane (TPU), offering double the durability. It's fully reversible for straightforward cleaning and drying, and the Wide Slide-Seal™ top ensures easy filling and a secure, leak-proof seal. The insulated Hydrofusion™ tube keeps water cool, even in extreme heat.

The ergonomic Surge™ Bite Valve includes a twist on/off function and cover for protection. The Plug-N-Play™ connect system simplifies tube disconnection and reservoir removal for refilling, without any leakage thanks to an auto shutoff valve, allowing the drink tube to remain in place.