The Lululemon Women's Define Jacket is a warm, breathable jacket that is designed to be layered on the slopes or hiking trails. It is made with Luon fabric that is sweat-wicking, four-way stretch, and breathable. The jacket also has added LYCRA fiber for shape retention and stretch. It is available in sizes 0-20 and has a high neck and long sleeves. The jacket is made with 87% nylon and 13% Lycra elastane, and the lining is made with 89% nylon and 11% elastane EUC no flaws to mention