Phase Change Cooling Vest by Icy Wrap for Men & Women, Hot Weather, Ice Reflective Vest with 30 PCS Ice Packs, High Tech Phase Change PCM material, stays cold for 5-10 hrs.

HIGH-TECH COOLING - Uses innovative material PCM (phase-change material) developed by NASA to rapidly cool the body surface.LONG LASTING – Uses long lasting increased qty of cold packs to enable a long duration cold life – 5-10hrs QUICK FREEZING – Add to the freezer either the full vest or the ice pack sheet for a quick freeze - .5-3 hrs.ONE SIZE FITS MOST – Adjustable sizing and V-Neck design, is breathable & moisture-permeable composite fabric for more comfort. LIGHT WEIGHT – Suitable for a wide range of applications: outdoor, industry, sports etc.