Polartec Power Dry, 100% Polyester
Here's what other sites are saying:
Opt for the moisture-wicking, extremely breathable Stoic Women's Breathe T-Shirt whenever it's time to get rad. The Breathe T-Shirt vents body heat with the help of moisture-wicking Polartec Power Dry fabric-putting an end to ridgetop shivers, mid-climb chaffing, and overheating on summer trails. Stoic's 3-D ergonomic fit frees you up to move, and the reflective logo hits come in handy when the sun wins the race across the horizon.
- Backcountry Outlet