![]() one type of hydrogel vest |
compiled from several sources
High-tech gear to help hikers stay cool in too-hot environments is here. Vests, towels, neck wraps and more are available.
These go beyond soaking your shirt or draping a wet towel around your shoulders, although some do work on the same evaporative principle. Others have pockets where you insert ice packs. Some of the products use batteries to actively circulate cool air, liquid or gel.
Medical uses of vests and pads have been known for a number of years. Multiple sclerosis sufferers often qualify for cooling vests to be provided to them. Pads for reducing fever, easing pain, cooling wounds or blisters are readily available.
Hydrogel evaporative vests often use Super Absorbent Polymer (SAP) technology, provide hours of relief by soaking them in water which then slowly evaporates to cool the body. These vests are lightweight and re-soakable on the trail. They can be washed numerous times and the cooling effect may last up to 72 hours. Some vests are helpful in temperatures as high as 104° F and 90% humidity, but they do work best in lower humidity since they cool by evaporation.
Athletes such as the Australian cycling team already make use of these garments. They are considered good safety equipment for construction crews in hot climates.
The vests are available in a variety of designs, and generally get good reviews from users.
On a personal note, with one of these, I might have been able to complete the Indiana hike I tried several years ago when I tried to take my early-spring-season-adjusted body to the 90+ degrees of southern Indiana without any acclimation. On the other hand, it seems a bit too artificial to really appeal to me.
for options just search for hydrogel cooling vests for athletes.
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