The Thule ReTrakt hydration hose features a magnetic design that automatically adjusts between sips. This helps you stay hydrated while remaining focused on the road. This hydration pack also provides enhanced stability and breathable materials for a comfortable ride, while reflective elements and bike attachment loops enhance visibility at night. Easily access your phone on the bike with one hand and store your tools and snacks in the organized internal pockets. This hydration pack is the perfect companion for your 1- to 3-hour rides.