The HydraPak Soft Flask collection redefines the way you carry hydration. Ultra-light, flexible, and compressible, these collapsible bottles shring while you drink to reduce sloshing, and pack down small when empty, cutting weight and bulk compared to traditional bottles. Perfect for running, hiking, or racing, the Soft Flask collection also includes energy gels and nutrition storage for fast access on the move, and water filtration for potable water from any location. Durable, sustainable, and trusted by athletes worldwide, they’re the best collapsible water bottle solution for performance-driven athletes and adventurers.