Turn Up Your Base Good base layers simply fade into the background while keeping you warm and dry. But feel free to sing the praises of the men's Burton Midweight Base Layer Pants next time you hit the hill. Just add a mid layer and jacket as needed, and everything else will just fall into place. Features: Plenty of Tech and Stretch : Midweight DRYRIDE Ultrawick polyester is highly breathable and ultra-fast wicking with plenty of stretch for an unrestricted feel. Stink Less : The sustainable odor control of HeiQ Fresh keeps it fresh without limiting breathability. Low Environmental Impact : Bluesign® approved materials reduce impact on humans and the planet during manufacturing.