The Contour 2L is the reservoir to put in a daypack when you want water that stays put. A 3D moulded bottom and Shape-Loc baffles keep two litres from sloshing side to side on a rocky descent off Mt. Hood or a punchy climb in Forest Park, and the slim profile sits flat against your back. The side exit port and universal hanger fit most hydration-compatible packs, the Plug-N-Play connector shuts off when you pull the tube to fill, and the bag reverses for drying between weekends.