Breathable and Insulating Layering Foundation for High Output Pursuits The Vigor Grid Fleece Bottom is a performance layer geared toward high-output mountain activity. An internal elastic waistband and drawcord give a snug and custom fit, while flat-seam construction ensures chafe-free comfort. The right hip features a bonded woven Ferrosi zip pocket, perfect for storing small essentials, and ActiveTemp™, a thermo-regulating treatment, manages body temperature, ensuring cool and dry comfortability. A perfect choice for climbers, hikers, and trail runners looking for a versatile, weather-resistant layer that is comfortable and breathable, the Vigor Grid Fleece Bottom is built for daily use.