KUHL Firefly Insulated Jacket - Women's A triumph in fit, construction and materials, the women's Kuhl Firefly Jacket is designed to suit cold-weather activities when you need both warmth and breathability while keeping bulk to a minimum. Details With superb warmth-to-weight ratio and continued insulation when wet, Primaloft® Gold delivers warmth in harsh conditions A second insulator, Primaloft® Gold Active, adds four-way stretch for greater freedom of movement Side panels under sleeve and yoke are insulated, breathable and stretchy Engineered for high aerobic activities, the flexible insulation provides temperature regulation and stability Nylon with a durable water repellent finish resists water and delivers durability in a soft, lightweight shell 3D pattern and body mapping reduce bulk and provide a form fit Inside collar features knit fabric to wick moisture Stretch woven cuffs secure the seal at the wrist, while cord lock adjustments at the hood opening provide a custom fit Zippered hand and chest pockets and a zippered inside pocket hold small essentials