The Capilene Cool Merino Long Sleeve is an ultra-lightweight Merino-blend base layer that excels at thermoregulation, breathability, and next-to-skin comfort, with natural odor resistance and fast drying. However, its silk-like blend yields limited durability and can be sheer in lighter colors, making it less suitable as a standalone top in cooler conditions and better used as a base layer under a layered kit for high-output activities.
The Capilene Thermal Weight Zip-Neck Hoody is a versatile base layer top that delivers excellent warmth for its weight, with high breathability and a soft, comfortable interior. It features an attached hood, long zipper for adjustable ventilation, and hidden thumb loops, making it well-suited for backcountry skiing, overnight backpacking, and alpine climbing, though it can be bulky when packed and is priced higher than some rivals, with some durability concerns.