Arc'teryx

Comfort starts with your base layer. Made for performance during lower output activities on cool days, the Arc'teryx Rho LT Zip Neck adds warmth, moves moisture, and is soft next to the skin. Its Torrent™ fabric is brushed for thermal performance and comfort, and a Polygiene® treatment provides odor control. The trim fit maximizes fabric performance and facilitates layering, a deep front zip makes it easy to pull on and off, the chest pocket secures your smartphone, and the tall collar adds warmth.

Updated with a resized zippered chest pocket and a more comfortable trim fit.