Unigear Tactical Hydration Pack with Insulation
THERMAL INSULATION COMPARTMENT: Adopted tough 1050D nylon material in main areas, it is ripstop, scratch-resistant, durable and will last a lifetime! Thermal insulation function in bladder compartment keeps you drinking cool and fresh water on your trail. External Fill Port with Integral Refill Handle is prefect for people who do not want to lug the reservoir out whenever it has to be refilled.
Unigear Tactical Hydration Packs Backpack 1050D with 3L Water Bladder, Thermal Insulation Pack Keeps Liquid Cool up to 4 Hours for Hiking, Cycling, Hunting and Climbing (Green)