Here's what other sites are saying:
Winter sports demand that you move, and your base layer will move with you with our 4WAY Stretch fabrics--92% acclimate dry polyester & 8% spandex. You could call this comfortable compression--it doesn't squeeze you into an uncomfortable position. It just provides high performance stretch, comfort, and warmth without the bulk.
- Ramsey Outdoor
Add some flexibility to your winter wardrobe with the PolarMax Women's 4-Way Stretch Crew. A healthy dose of spandex gives this fast-drying top the ability to follow your every move. It is sewn with flat seams for exceptional layering comfort.
- Backcountry Outlet
Save 30%-60% at REI-Outlet.com! Closeout. Flatlock seams are non-bulky and supple. Four-way stretch allows maximum mobility and comfort. Pill-resistant Acclimate polyester maintains comfort by wicking moisture away to fabric's outer face for rapid evaporation. This crew top's four-way stretch offers unbeatable mobility, making it great for active adventures in cool climates.