The Black Diamond Men's Approach Quarter Zip Top is a light fleece for cool climbs. Whether you're up early in the morning before the sun gets going or belaying as the sun sets, the polyester stretch jersey fleece is a welcome bit of warmth. Adds enough heat while still remaining breathable for the more active moments. Just pop open the 1/4 length zip and push up the sleeves when your body needs faster cooling. Features of the Black Diamond Men's Approach Quarter Zip Top Underarm gussets for added mobility Quarter-length zipper for temperature regulation Elastic cuffs