If you thought the daytime hike was cold, just wait until you're all sitting around the campfire at night. Lucky you have the Columbia Men's Delta Ridge Down Jacket keeping you warm. Its light, lofty down insulation ensures warmth without much weight, and as if that wasn't enough, Columbia lined it in Omni-Heat thermal reflective to bounce body heat back your way. The shell is water-resistant to protect the down, and you, from wet weather.