500ml Collapsible TPU Soft Flask with Cap Water Bottle for Trail Running, Marathon, Triathlon, Hiking
Our soft flasks are designed to conform to the shape of your body, compressing as you drink. This means reduced sloshing and bouncing, less spillage and easier drinking. This flexible 500ml flask compresses as you drink it to eliminate water bouncing inside and reduce sucking effort. The blaster valve helps keeping the flask leak-free until you bite it.