Taking on-mountain comfort to new heights, the evo Ridgetop Merino Wool Midweight Crew Top features a pure 190 gram merino wool construction that consists of ultra-fine fibers for a silky smooth feel and a natural climate control. With an attention to detail by way of low profile thumbholes and a backpack-friendly raglan design, the evo Ridgetop Merino Wool Midweight Crew Top is an essential for dedicated lovers of the mountains.