Hydrate fast and ride light with this compact stable lumbar-style bike pack featuring an integrated low-profile Hydraulics™ 1.5L LS Reservoir. A magnetic attachment secures the bite valve to the hipbelt while a bike-specific airmesh wrap hipbelt and close-to-body AirScape™ backpanel deliver breathable bounce-free comfort. Vertical straps hold a chin guard or extra layer for added versatility.