Adapted to harsh, cold climates, the Mesozoic can adeptly juggle all of your winter work and field exercises. Crafted from 100% polyester herringbone fabric, its waterproof, breathable, fully seam-sealed shell features hefty body insulation to keep you warm and dry through Ice Age conditions. Merrell Opti-Shell waterproof, breathable fabric keeps you dry and comfortable. Merrell Opti-Warm lightweight, low-bulk synthetic insulation keeps you warm. 100% polyester. Textured herringbone fabric with heathered coloring. DWR finish. 120g (body), 100g (sleeves), 60g (hood) Merrell Opti-Warm. Fully seam-sealed. Durable herringbone textured fabric. Dual front cargo/handwarmer pockets. Falls just below hip. Fully seam-sealed. Inside zip-secure media/storage pocket. Fully insulated hood. Waterproof-breathable performance. Zip-secure sleeve pocket.