PVA fabric allows absorbed water to evaporate faster compared to other evaporative fabrics. This is why PVA cooling vests have an increased cooling capacity.
Evaporative vests cool your body exactly the same way as your body cools itself: simply through evaporation. We just supercharge this natural cooling process.
No fridge or freezer needed to activate these vests. Just add water!
PVA EVAPORATIVE COOLING