We reach for the Summit Ecoloft Vest when hitting the trail on blustery fall and spring days, or on winter rides that don't require a full jacket. This vest uses lightweight Ecoloft insulation with laser-perforated panels on the sides and back for excellent ventilation during high-output activities. Dual zippered hand pockets hold ride essentials and a PFC-free DWR coating shrugs off light precipitation and tire spray. Layer the Summit Ecoloft Vest over a thermal jersey for cool weather rides or under a shell for deep winter