Warmth for Active Lifestyles.The men’s LIFALOFT JACKET is a sleek and warm insulator designed to keep you warm without the bulk, making it perfect for winter activities under your hardshell. This insulator features revolutionary Lifaloft synthetic fill. This insulation is made of unique and recycled lifa yarn technology and was developed in cooperation with PrimaLoft. Lifaloft traps more air versus polyester-fill, and is lighter, making it more maneuverable and hydrophobic. Combine this innovative filling with a lightweight and weather-repellent PFC free shell, and you have a highly mobile jacket with less of a carbon footprint. Features like lycra edging along the collar and sleeve cuffs improve its fit. An inner placket behind the front zipper blocks cold air.