The Altitude Tee was engineered for those who demand performance and refuse to settle. Near weightlessness & excellent breathability combined with a thoughtful design will keep you comfortable whether you’re trail running, hiking, at the gym, or in almost any other performance oriented setting:
Ultralight and Breathable: Designed f
4.8
104 ratings
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Wonderful Shirt!
This is 2nd shirt I bought. Wore one while hiking Camino Frances. Performance was great. The shirt held up well under my backpack with less wear than expected. I washed shirt every other day since smell was present but minimal. Drying was fast. I’m 5’10”, 182lbs and wore XL. Shirt size ran slightly small.
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Alan · September 23, 2026
Stellar for warm to hot weather
After some time with this and the short sleeve Altitude tee and the sun hoodie, I'm so impressed with how they perform in hot weather. Some of the coolest material on the skin I've come across in 40 years of backpacking. So breathable!
The odor factor isn't up to merino or alpaca wool level, but those materials are too warm for hot weather, and this does outperform other hot weather material for odor resistance.
Very lightweight also - right up there with some of the lightest material in my gear locker.
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Christopher · August 26, 2026
My New Favorite Travel T Shirts
I travel a lot and only do carry on. These shirts wash up quick in a hotel sink and are dry and ready to go in the morning. Same on the trail. They weigh almost nothing and take no space.