The Osprey Katari Men's Hydration pack provides a lightweight option that rides close to your back for stability on any trail. With a Hydraulics LT reservoir included, this pack series offers a super comfortable and stable hydration carrying solution for bike rides and beyond.Airscape Suspension allows dynamic body movement and distributes load across entire back panelAirscape back panel Mesh-covered extra deep ridged foam allows maximum ventilation while keeping the load close to the bodyBiostretch Harness is a bike-specific winged shoulder strap shape provides comfort and stability with soft, breathable spacermesh contact surfaces and die-cut foam ventilationExternal reservoir sleeveBlinker light attachmentMagnetic sternum strap bite valve attachmentExternal zippered scratch-free heat-embossed slash pocketWARNING! High Energy Magnet Could affect the function of electronic instruments like pacemakers or avalanche beacons Swallowing hazard. Not for use by children under four years old. See Osprey Hydraulics Owner s Manual for more informationItem SpecificationsColorBlackDefined ColorBlackGender/AgeMen'sWeight360 Osprey Katari Men's Hydration Pack Hydration Packs UPC: 843820157918