Cool Collar The Cool Collar system is a comfortable two-piece personal cooling system worn on the neck. With a soft neoprene wrap and two detachable cooling packs that deliver regulated 57 degree F cooling with a quick 20 minute recharge, the Cool Collar provides refreshing, uninterrupted cooling so effective, you just have to feel it to believe it. Ergonomically designed for extreme comfort during even the most rigorous activity, this soft and flexible neoprene wrap keeps the cooling elemnet in place - whether you'rre driving for the green or watching the kids play soccer. Includes two personal cooling packs. These cooling packs produce a regulated output of 57 degrees F. for up to 1.5 hours. Recharge takes as little as 20 minutes, so swapping packs on the fly is a snap, making convenient and refreshing 24/7 personal cooling just a cooler of ice water away. This is not a soggy cooling bandana that utilizes evaporatation for cooling, so they don't work in high humidity. The CCX Cool Collar gives you refreshing 57 degrees F. cooling - no matter the weather. Durable construction -designed to last years.