When both the conditions and mission are harsh, we layer up with the Mountain Equipment Lumiko Hooded Zip Fleece for a touch of added warmth that won't wet out through the grind. The light, stretchy build lets our skin breathe easy and our limbs move freely yet holds in warm air to keep our muscles primed. As we test our grit, the fleecy fibers wick away moisture and dry off quick, ensuring we don't overheat on the push to the summit and don't get overchilled as we take in the view.