Helly Hansen Active Flow 1/2 Zip Top Men's

The last thing you want when you're a few days in on your expedition is to be saddled with a wet, soaked baselayer. Make sure that isn't you by throwing on the Helly Hansen Men's Active Flow 12 Zip Top. The Lifa Flow and Life Stay Dry technologies work together to keep you warm and to wick moisture away from your body, ensuring you don't freeze every time you stop moving. The 12 length zipper lets you easily take this layer off, on the off chance you ever want to wear something else.