
WORK HARD.
PLAY HARDER.
37.5® Technology helps keep you warm when you’re cold, and cools you down when you’re hot so you can get more out of the sport you love.
About 37.5®
Technology
At work
Active particles permanently embedded at the fiber level capture and release moisture vapor to prevent liquid sweat from forming and help cool you down when you’re hot. The same active particles trap energy to warm you up when you’re cold.