The perfect layer for high output activities, from alpine approaches, backcountry tours or mountain runs that require added protection, the Coefficient LT Hybrid Hoody is a stretchier, lighter version of Black Diamond's popular Coefficient fleece with added insulation. The Primaloft insulated, breathable, woven front panel provides warmth against the elements while the Polartec Power Grid fleece with a gridded interior increases wicking performance and adds breathability. A zippered chest pocket stores your phone or other essentials, while maintaining a minimal profile that is slim cut for ease of layering.