The ArcTeryx Phase SL Zip LS is a silkweight Phasic™ zip-neck baselayer for high output in cooler temperatures. Phase Series: Moisture wicking base layer | SL: Superlight.
Built with an advanced performance fabric created for high-output activities, the men’s Phase SL Zip Neck is a silkweight baselayer that rapidly wicks moisture and stretches with the body. Next-generation Phasic™ SL yarns speed dry times, improve moisture transfer and elevate comfort. The tall collar adds coverage, and the deep front zip provides ventilation. Gusseted underarms facilitate ergonomic freedom. Updated style lines and improved fit.
Mechanical stretch textile for unrestricted mobility
Flatlock construction improves next-to-skin comfort
Merrow stitch seam construction reduces seam size
Next-to-skin fit aids thermal efficiency and moisture transfer
Anatomical shaping for fit and comfort
Tall collar with a deep zip neck provides warmth with rapid ventilation