Bladder Insulators for Camelbak Lumbar Water Bladder Reservoir | Gearhandle.com
Amazon.com : CamelBak 3-Liter Lumbar Water Reservoir - Hydration Bladder - Faster Water Flow Rate - Leak-Proof Water Bladder - Ergonomic Shape - Big Bite Valve - BPA-Free - 100oz : Sports & Outdoors
Wet Weekend Water Bladder for Hydration Packs – iHeartRaves
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