Armycrew Tactical Mini Vest Beer Drink Cooler Sleeve Beverage Holder. 50% Nylon , 50% Polyester. Heavy-duty and durable mini tactical vest beverage holder/carrier for those military fans. Patent pending, Loop fields on the front and back for name tape or tactical patches, shoulder pads. Features adjustable hook and loop shoulder straps. Perfect for hot or cold beverages in can or bottle. Dimensions: 6" high X 3.5" adjustable diameter.