The Arc'teryx Phase SL Crew Long Sleeve Top is a base layer designed with active women in mind. The secret is in the Phasic™ SL fabric, which is made out of soft polypropylene and polyester. It makes this base layer appropriate for high levels of activity with a UPF 25+ rating that protects from harmful sun radiation. The Phase SL Crew is meant to be tight with added stretch fabrics that enhance moisture-management and thermal efficiency.
Phasic™ SL 70% Polyester / 30% Polypropylene
Next-To-Skin Fit These snug fitting garments are made with stretch fabrics to enhance moisture-management and thermal efficiency and should be worn tight.
UPF 25+ Very good protection from the sun: 96 - 97% UV radiation is blocked.
Encapsulated silver ions help reduce odor.
Flatlocked seams improve next-to-skin comfort.