Combining a durable, earth-friendly stainless steel water bottle with a high-quality foam roller, the Hydro-Roller fits the fluids, muscle warm-up and recovery you need-in one convenient, easy-to-pack design. Warm-up your muscles, joints, and tendons. Stay hydrated throughout your training sessions or practices. Then roll to help relieve aches and pains and shorten recovery times. The Hydro-Roller puts two fitness essentials-high-volume hydration and high-density foam rolling-into one convenient design.