Beluga Sonic Baselayer Slim Fit Top

The Sonic zipped top is the perfect layer for mountain running and fast hiking. Designed with a roomy fit, comfortable sleeves, and breathable fabric, it features an odor control treatment, making it ideal for multi-day adventures. The collar and deep venting YKK chest zipped provide additional airflow, while hidden stretch thumb loops add extra comfort. This versatile piece offers protection on cooler days when a top is not enough, or on hotter days when you need coverage from the sun.