Here's what other sites are saying:
The Stoic Men's Merino Full-Length Bottom is the baselayer of choice for guys who push the uphill hard and the downhill even harder. Merino wool provides the warmth your muscles need, but resists odor and evaporates excess moisture as you sweat. The Y-Elastic waist band and flatlock seams prevent chafing caused by your pack rubbing against the waistband of your baselayer. The natural odor-eliminating property of merino wool and the added mobility of spandex make the Stoic Merino Full-Length Bottom a crucial piece in your skiing or hiking wardrobe.