Crux Reservoir: 85oz capacity delivers 20 percent more water per sip with ergonomic handle and leak-preventing on/off lever Breathable Back Panel: Air mesh design ensures lightweight comfort and ventilation during rides Ventilated Mesh Harness: Provides a secure, breathable fit for long-distance cycling Reflective Accents: Enhances visibility and safety in low-light environments Zippered Essentials Pocket: Secure storage for keys, tools, or small personal items