We put our gear to the test last weekend at the Mammoth Mountain Bike Park, where mid-summer temps can swing from chilly at the peak to toasty down below.  

  

Off the Top was a breezy 40° and we didn't feel it, thanks to our trusty base layer tops. When we made it to the bottom and stopped for a cold brew to beat the heat, we forgot we had them on because we felt so consistently comfortable. Oh yeah, the Ridge-wearers in our group also emerged stink-free unlike our polyester-wearing pals.

   

After several rides, we finally washed and hung up the tops outside. They air-dried in about 30 minutes.    

    

We're constantly in awe of the performance of this all-natural fabric, for any sport, any season.