Arc'teryx Sima Jacket

The Sima Jacket is an ultralight, packable hiking layer designed for warm-weather adventures. Its recycled Diem™ stretch polyester dries quickly, feels soft against the skin and delivers exceptional breathability, while the tall collar and UPF 50+ protection help shield you from intense sun.

Built for active movement, the jacket combines articulated patterning with a ventilating back gill and an elasticized hem for a secure, comfortable fit. It suits hikers, trail runners and anyone seeking lightweight protection on hot, sunny days.