Stress Tested Mission-Critical Gear For When The Mercury Drops

PHOOZY Phone Protector 

By Blair Braverman

This unassuming "phone coozy" has a chromium-infused shell that borrows technology from astronauts' boots and gloves.  Here on Earth, it insulates your cell phone's battery from charge-sapping temperatures down to minus 20 degrees, doubling the device's run time.

Check out all of the "Stress Tested Mission-Critical Gear For When the Mercury Drops" in the January/February 2018 issue of Outside Magazine.