CamelBak's innovative Omega HydroTanium Deluxe Reservoir is built with rugged polyurethane so you know it's built to last. The Deluxe adds some useful new features such as a quick disconnect clip that allows you to detach the hose from the reservoir, as well as a flow meter so you can accurately measure your fluid intake. A wide 3.5-inch opening with a tethered cap makes it easy to fill and clean. Plus, combined with a super effective anti-microbial film, these reservoirs last longer than ever. It includes a drinking tube and the highly drip-resistant Big Bite Valve.