Outdoor Research Men's Activeice Spectrum Sun Long Sleeve Tee

The ActiveIce Spectrum Sun Long Sleeve Tee from Outdoor Research is the perfect companion for anyone who wants to enjoy their outdoor adventures to the fullest. Whether you’re hiking, trekking, climbing, or camping—this long-sleeve shirt ensures you always stay cool and comfortable. Thanks to innovative ActiveIce™ technology, the shirt regulates your body temperature and dries quickly, so you won’t break a sweat even during intense activities.
Made from a recycled polyester blend, this shirt offers not only breathability but also exceptional comfort. The UPF 50+ protection ensures that you’re well protected even in strong sunlight. The thumbholes and abrasion-resistant design guarantee an optimal fit and freedom of movement, while the side slits at the hem provide additional flexibility.
Another highlight is the inner loop in the center of the back, which makes it easier to hang the shirt up. The logo, updated in 2025, underscores the modern look of this functional shirt. Whether you’re planning your next mountain hike or just want to spend a day in nature, the ActiveIce Spectrum Sun Long Sleeve Tee is the ideal choice for any outdoor enthusiast.