Features Bergans RS3 Stability System Back, shoulder straps in ventilating foam with mesh surface Top zip opening Includes Source 2 L hydration system Internal zippered pocket for small items Description Product Description FEATURES of the Bergans Rondane 12L Pack Bergans RS3 Stability System Back, shoulder straps in ventilating foam with mesh surface Top zip opening Includes Source 2 L hydration system Internal zippered pocket for small items Small pocket on shoulder straps Detachable hip strap Multiple attachment points Front compression straps Attachment points for bicycle light/reflector Plenty of reflective details Grab handle at top Key attachment clip Double sternum strap/carry strap YKK zippers Specially developed for high levels of activity