Here's what other sites are saying:
Ascend, descend, or just shamelessly lounge all day on the couch in the Houdini Airborn Alpine Tight. A thin, lightweight, merino-silk blend garment in a three-quarter length, it offers comfortable warmth for all your activities. The gusseted crotch enables easy range of movement, the soft waistband and extended back height provide secure coverage, and the moisture-wicking nature of the fabric keeps you dry even at full-throttle. And with the durability of silk and the natural antimicrobial properties of merino, it'll remain intact and fresh longer than any comparable synthetic tight.
- Backcountry.com refers to the men's version