The Fjällräven Abisko Day Hike SS W is a breathable T-shirt ideal for warm hikes. Made from 88% recycled polyester, it is quick-drying and easy to care for. A looser fit and gussets in the armpits provide better mobility. Relocated shoulder seams reduce the risk of chafing when carrying a backpack. The material promotes moisture wicking to keep you fresh during intense walking.