Klim Ostara Long Sleeve Shirt

The KLIM Women's Ostara Long Sleeve Shirt is a lightweight performance layer designed for long days outdoors when comfort, mobility, and sun protection matter. Built from moisture-wicking polyester jersey knit fabric with engineered four-way stretch, the Ostara moves naturally with your body while helping keep you cool and dry throughout the day. Flat seam construction and offset shoulder seams minimize chafing and improve comfort whether you're hiking, traveling, working around camp, or enjoying a weekend at the cabin. With built-in UPF 30 sun protection and a lightweight 121 GSM construction, the Ostara delivers breathable coverage without unnecessary bulk. From summer adventures to active everyday wear, it's the kind of shirt you forget you're wearingâ€"which is usually the highest compliment a performance shirt can receive.