Dual-layer ColdGear construction combines a smooth, fast-drying exterior with a brushed, heat-trapping interior. Material wicks sweat & dries really fast. 4-way stretch construction moves better in every direction. Anti-odor technology prevents the growth of odor-causing microbes. Encased elastic waistband with internal drawcord for a perfect stay-put fit. Built-in brief for enhanced coverage & support. Center back secure, zip storage pocket. Reflective details for low-light runs. 11" leg zips. Inseam: 27.5".