All About that Base.When the mountain calls for an extra layer, these pants hit the sweet spot for warmth and breathability.The women´s Burton Midweight X Base Layer Pants will keep your personal climate under control, so you can worry about important stuff like which run is next and what to eat for lunch.FEATURES:-DRYRIDE ULTRAWICK MIDWEIGHT BASELAYER [92% RECYCLED POLYESTER, 8% SPANDEX] Double Side Peached using HeiQ odor control technologies.-4 Way Stretch,Anti-odor Technology,Dryride Ultrawick.