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We dig multi-talented tools whose one function can be applied in many ways. Polyacrylamide crystals can “only” absorb 400 times their weight in water, but keeping your lawn wet is just one way they can make your life better. Here’s another great application: Sew a handful of the crystals into a scarf, soak it, and let the evaporation keep you cool.

Even under less-than-ideal conditions — say the crystals only absorb ten times their weight — an ounce of the crystals would absorb ten ounces of water, for a fair amount of cooling evaporation. Kafka Design makes Kool Ties in a huge variety of patterns, for $10 apiece.  A “disposable” version runs $3 — for nasty-dirty environments?

Kool Ties [Kafka Design]
Street Pricing [Google Products]

 

4 Responses to Keeping Cool With Watering Crystals

  1. Chris says:

    Really, you look like a total d-bag wearing these but they work amazingly well. I used to work in a tire-retreading plant that would get up to 130 degrees at times. We ended up with a case of these and it helped us get through the summer.

  2. Shopmonger (aka Donny B) says:

    Sounds like a resounding endorsement……….

    The idea hold true ,that is for sure….

  3. Jimbo says:

    They do indeed work but after a few uses the crystals begin to dry up in lumps which makes rehydrating a pain as the worst part is that it’s impossible to get all the sweat out of them so they stink after a few uses.

    Great idea for a few uses but not for long term use.

  4. Michael Pendleton says:

    I love these things! I work in a shop most of the time, and I don’t use them there as much, but when I was living in DC and doing outside work in the summer, these things were a necessity. Yes, they look a little dorky, especially when they are brand new and freshly soaked, but they are so cooling that it won’t be long before the rest of the crew has stopped mocking and started wearing!

    I never had problems with the crystals clumping, but I did find that I needed to have three active at once. It takes two days to fully empty, and I thought that was the best way to keep them from getting too stinky.

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