Phase Change Cooling Vest - 18C, Navy Blue
Use innovative material PCM (phase-change material) developed by NASA to rapidly cool the body surface.V-neck design, you will look nice in it.Flame retardant, breathable & moisture-permeable composite fabric for more comfort.Wide range of applications: outdoor, industry, sports, etc.resilient, allows 60,000 times reuse. simple to use, keep cool for 5-10 hours.