Styled after old school mountaineering jackets, this modern version hooded vest updates with high performance materials and construction. M-Select WARM insulation creates micro-spaces that trap body heat and reflect it to deliver efficient warmth without the bulk, using materials that retain loft without sacrificing compressibility for easy packing. M-Select DRY offers outside protection for extreme wet conditions when you"re on the move, M-Select DRY products shed external moisture from precipitation and wet ground conditions while allowing moisture from physical activity to escape to give you dry comfort inside and out.