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Quantity
1
Description
Stay comfortable. Keep going.
Phase-change cooling—the same technology NASA helped advance for spacesuits—delivers dry, hands-free relief at a comfortable 64.4°F, even in hot outdoor conditions.
About 1 hour of cooling per ring outdoors—oft...
Reviews
3.6
1.5K ratings
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I ordered two and wish I bought more
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Yessenia · 10 days ago
Originally skeptical, but fell in love
I bought the four pack with the insulated bag for my boyfriend who is a contractor. He is often working outdoors in the heat and he’s a larger man so he himself overheats very quickly. We had a very hot spell here and Iowa recently which I dropped these rings off to him at work and he shared with a coworker and they said that exchanging them back-and-forth from there container along with other cold ones ended up re-freezing them so they were able to use them all day long he absolutely loves them
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Randi · July 30, 2026
Tried one out when I got them, and am really happy with the results. It was insanely hot and put one of those on. I felt cooler almost instantly. I will be taking these with me for the rest of the summer.