Ergodyne 6603-2PK Chill Its 6603 Cooling Neck Wrap, Long Lasting Cooling Relief, 2-Pack,Blue

100% PVA INSTANT COOLING RELIEF Run under water for one minute or until saturated, wring out excess water for drip free cooling LONG LASTING Can last for up to 4 hours on a single soak. Simply re-wet to increase cooling duration HOW DOES IT WORK? Cooling PVA material absorbs water and creates a cooling sensation as it evaporates REUSABLE & MACHINE WASHABLE Air dry until material is stiff, re-wet until soft. Machine washable with mild detergent and air dry HEAT STRESS PREVENTION Reduces the effects of heat exhaustion and fights fatigue while working or playing in the heat. Can also be used to help bring down fevers, hot flashes or night sweats SIZING 4in x 29.5in / 10.2cm x 74.9cm