The ActiveIce™ Spectrum Sun T-Shirt delivers cooling, quick-drying performance with thermoregulating ActiveIce™ technology, UPF 50+ protection, and bluesign® approved recycled materials for high-output days on sunny trails and mountain terrain.
The ActiveIce™ Spectrum Sun T-Shirt keeps you cool and protected through high-output days under the sun. Built for hiking, running, and active pursuits in warm conditions, it balances comfort and performance when the temperature climbs.
Powered by thermoregulating ActiveIce™ technology, it cools as your body heats up, maintaining a steady core temp through long efforts. The lightweight, breathable fabric wicks moisture, dries fast, and delivers UPF 50+ protection. Side slits free up movement, while chafe-free seams and dynamic reach patterning keep every stride and stretch smooth. Made with a recycled polyester blend and bluesign® approved materials for sustainable performance you can feel good about.
Outdoor Research® gear is guaranteed to perform throughout the lifetime of the product.
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