Ergonomic and breathable back design Provides solid support with a breathable back panel, helping maintain comfort across different riding conditions and reducing heat buildup during long rides. Builtin water bag compartment Keeps hydration within easy reach, enabling a seamless and uninterrupted cycling experience. Heat dissipation and hydration integration Innovative design with an integrated hydration system to help you stay cool and hydrated on the move, supporting performance during your cycling adventures. Fine craftsmanship with audio access Features a builtin headphone jack for convenient audio access while traveling, suitable for cycling and outdoor trips such as hiking. 23 practical use scenarios Daily commuting and longroad rides: Stay comfortable with a supportive, ventilated back and quick access to hydration, enabling you to ride longer with less fatigue. Hotweather cycling and mixed terrain: Benefit from the heatdissipating design and integrated hydration system to maintain a cooler temperature and steady hydration. Outdoor activities beyond cycling: Ideal for day hikes or multiactivity trips where you want accessible audio and reliable hydration support while on the move.