H.A.W.G.® Pro 20 Hydration Pack with 3L Reservoir – CamelBak
Amazon.com : Hydration Tube Covers Bladder Insulators are Compatible with Camelbak Reservoir Water Bladder. Will fit MIL Spec Antidote and Crux : Outdoor Backpack Reservoirs : Sports & Outdoors
CamelBak Reservoir (Tube Enclosed)
CAMELBAK Antidote Insulated Tube Director (Blue) 90779 B&H Photo
OD Green Insulated Drink Tube Hose Cover | Gearhandle.com