men's icebreaker
These are attractive, comfortable t-shirts and useful in many ways from casual attire and hiking. They do fit a bit snug but it is not uncomfortable. Wonderful wicking fabric - amazed at how great a wool fabric can feel (and wash)

great shirt
It feels great and looks great. I like that it's not synthetic and itchy and it does not seem to smell like other fabrics. The seams look great as well.

Short sleeve baselayer
This is my first merino short sleeve shirt and first top from IceBreaker and I am very impressed. I've owned tops from Smartwool and Ibex, but have not had a merino short sleeve top until now, and look forward to getting more. I am 6' 160lbs and the medium fits me perfectly, very form fitting, but not restrictive in any way. I would say that the sleeves are a little shorter than I'm accustomed to for a short sleeve shirt, and I wouldn't prefer them this way every time. But I bought this mainly for hiking and backpacking, and many times I'll have a second long sleeve windbreaker type shirt when the sun is beating down or it becomes a little chilly after sunset, and this shirt is great for any temperature. It feels comfortable after a good workout and then continuing to be worn.

Soft, odor free
Bought it for hubby to hike / exercise in. He's always used Patagonia's capilene, or Salomon's shirts before, but they stink badly after a day or even a few hours. On multi-day backpacking trips, that's a major problem. The Icebreaker really saved the day - after couple days of wear, it only starts to smell. The odor-fighting property lasts longer if you rotate it with another shirt. It does get drenched rather quickly compared to synthetic shirts though, and it shows.

Best fitting active shirt I have bought....using for both running as well as hiking. Looking to buy another of same shirt in another color option. Compared to other similar merino short sleeves, this wins hands down.