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Designed to provide continuous cooling comfort without feeling bulky or damp, Glacier Tek’s cooling vests for men and women help you regulate your body temperature in hot environments. With insertable cooling packs that feature PureTemp’s biobased phase change material, our vests keep you feeling comfortable for up to 2.5 hours because the packs maintain a pleasant 59°F. Need a little more room? No problem! We offer extender kits for those with wider chests. Or if you’d like to stay cool longer, we offer additional cooling backs which can be kept on-hand to swap out when needed.