Hydration Flask 500 mL Performance Hydration. Simplified. Built for movement, the ProteinCo Hydration Flask is designed to keep you fueled without slowing you down. Lightweight, flexible, and streamlined, it adapts to your pace: whether you're running, cycling, or pushing through endurance sessions. Its compressible TPU body reduces sloshing as you drink, while the high-flow valve ensures effortless hydration with every squeeze. Key Features 500 mL / 17 fl oz capacityOptimal volume for training, racing, or on-the-go hydration. Flexible TPU constructionUltra-light, compressible body that shrinks as you drink. High-flow valveFast, efficient water delivery, no interruption to performance. Wide openingEasy to fill, clean, and add electrolytes or powders. Clear minimalist designSleek, modern aesthetic Made with recyclable materialsDesigned with sustainability in mind.
