A long skin track up asks a lot of a base layer as the pace and temperature keep shifting, and the Ortovox Fleece Light Short Pant puts merino wool against the skin to handle it. A waffle structure on the inside moves moisture away during the climb, while the breathable blend helps regulate temperature in these three-quarter length merino base layer pants. What Our Gearhead(R) Experts Are Saying:"After full days of climbing and skiing down, my legs never swung between sweaty on the way up and cold at the top, and the stretch moved with each step without bunching at the knees. The waistband stayed put without digging in, so nothing shifted when I dropped in."