COMPACT & COLLAPSIBLE DESIGN: This soft flask compresses as you drink, minimizing water sloshing and saving space in your running vest or hydration backpack. The collapsible water bottle shrinks to a fraction of its full size when empty, making it ideal for trail running, marathon training, and long-distance hikes where efficient gear storage matters.
DURABLE TPU & BPA-FREE MATERIAL: Constructed from premium thermoplastic polyurethane (TPU), this hydration flask is completely BPA-free and PVC-free. The flexible, lightweight material withstands repeated squeezing and folding without cracking or leaking, providing a reliable hydration solution for daily training, endurance sports, and outdoor adventures
HIGH-FLOW BITE VALVE WITH EXTENSION STRAW: The self-sealing bite valve delivers efficient hydration on the move — simply bite, sip, and release to stop the flow with no dripping. The included extension straw allows you to drink without removing the soft flask from your vest pocket, keeping your hands free and your pace steady during runs
UNIVERSAL VEST & BACKPACK COMPATIBILITY: The 500ml (17 fl oz) capacity and slim profile are designed to fit securely into the front shoulder pockets of most standard trail running vests, hydration packs, and running backpacks. The narrow mouth opening ensures controlled refilling and a snug pocket fit without bulk
MULTI-SPORT HYDRATION FOR EVERY ADVENTURE: Built for more than just running — this collapsible sports water bottle is perfect for trail running, hiking, marathon racing, cycling, backpacking, and gym workouts. The leak-proof construction and durable TPU body handle temperature swings and rough outdoor conditions with ease