For ambitious mountain bikers looking for a lightweight, comfortable bike pack with maximum protection. Maximum protection with the ultra-light, removable back protector. Deuter will repla-ce deformed back protectors after a serious crash (Free Crash Replacement, two-year warranty). This TÜV/GS certified protector pack features a deuter Airstripes carry system that also maintains effective ventilation across the back. The Deuter Airstripes back system is light and reduced to the essentials but with everything you need for a day’s ride. deuter - Flyt 20l Bike Backpack graphite black