The Spark10 LR is a women's specific ultra-light, lumbar-based reservoir pack with MTB-specific cargo. The 2L Antidote lumbar reservoir keeps water weight low and close to your back. Thanks to the women’s-specific design, the velvetex-lined shoulder, and chest straps will fit comfortably on your chest without chafing, and the shorter pack length offers a better ergonomic fit.

Antidote Reservoir Features: Antidote Lumbar Reservoir with 1/4 turn - easy open/close cap, lightweight fillport, patented Big BiteValve, HydroGuard technology, PureFlowtube, easy-to-clean wide-mouth opening