Altitude Performance Tee

Looks great, breathes great, isn't durable.

Looks nice! It isn't marked male or female on the website but on the tag it says mens and does fit like a man's shirt. I was still able to fit into a small, as a woman, but the underarms are a little baggy. The color is nice and the fabric is SO light and breathable. It has a snag after my first bike ride out, from rubbing against my backpack, which is my main complaint with these shirts. The fabric is so light and breathable, but snags quite a bit really fast. My one shirt has like 10 snags on the front after 2 months. But for outdoor use, you can't beat them!

Great active tee

I haven't used this tee for backpacking yet, but I have used it a lot for other physical activities, including running, cycling and strength training and it has worked really well for me in these conditions. The fabric is comfortable and lightweight, however I find it quite prone to snagging and pilling so I'm not sure how durable it would be if used for backpacking in more demanding conditions, which is why I give it 4 stars instead of 5. The fit is great too. For reference, I am 177 cm (5'9"), 78 kg (172 lbs), 82 cm (32") waist and 102 cm (40") chest, and both the sizes S and M fit me well: S for an athletic fit and M for a slightly more relaxed but still somewhat athletic fit.

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.