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Men's Activeice Spectrum Sun T-Shirt
The ActiveIce Spectrum Sun T-Shirt is built with thermoregulating ActiveIce™ technology, UPF 50+, and bluesign® approved materials, perfect for keeping body temperature in check while hiking, backpacking, climbing, or setting up camp. Read more
bluesign-Approved Materials with Thermoregulating ActiveIce for Sunny Days
The ActiveIce Spectrum Sun Long Sleeve Tee is built with thermoregulating ActiveIce™ technology and bluesign® approved materials, perfect for keeping body temperature in check while hiking, backpacking, climbing, or setting up camp.
This tee is built with an ultra-comfortable, breathable, and quick-drying polyester blend treated with our proprietary ActiveIce™ technology. ActiveIce™ reacts to your body's rising temperature by cooling down your core, keeping you in the sweet spot longer while pushing the tempo or working hard. The chafe-free design, built-in stretch, and UPF 50+ are welcome essentials for long days spent under the sun, delivering comfort and maximum range of motion on reachy boulder problems or tight slot canyon squeezes.
Purpose-built for staying cool while spending long days in the mountains under the sun, the ActiveIce Spectrum Sun T-Shirt is a warm-weather staple for every outdoor enthusiast.
Fabric Performance:
- Breathable
- Movement Mirroring Stretch
- Quick Drying
- Recycled Polyester
- Thermo-Regulating Cooling ActiveIce™ Treatment
- UPF 50+
- Wicking
Design Features:
- 2025 Updated Logo
- Chafe-Free Design with Dynamic Reach
- Interior Center Back Locker Loop
- Side Slits at Hem for Better Movement
Infinite Guarantee®
Outdoor Research® gear is guaranteed to perform throughout the lifetime of the product.
