Micro D® 100% recycled polyester microfleece offers soft, light warmth; fleece acts as an insulated mid layer with a shell, or a stand-alone layer in moderate conditions Features a nylon-reinforced front placket with 4 snaps for easy venting adjustments Stand-up collar has 2 layers of fleece for added warmth Y-Joint sleeves allow full range of shoulder mobility Spandex trim at the cuffs and hem offers a smooth finish on exposed skin