What Our Gearhead(R) Experts Are Saying:"This hip bag is perfect for mountain biking or gravel rides. The breathable support panel and elastic waist belt ensure a secure fit and maximum airflow, while the hydration system compatibility and extra storage make it incredibly versatile."The Deuter Pulse Pro 5L Hip Bag delivers a perfect balance of storage, comfort, and freedom of movement for mountain bikers and trail riders. Designed with Air Spacer Mesh and an elastic waist belt, it offers exceptional ventilation and a secure fit, even on technical trails. The spacious design includes compartments for a hydration system, tools, and snacks, while stowable straps accommodate protective gear when not in use.