Smartwool  Intraknit Thermal Merino Base Layer Colorblock Crew - Men's

I might be the only one but this shirt is itchy! I don't mind how thin it is as other reviews I've read on SmartWool claim it is warm. Sadly I'll never know as it is so itchy I'll never wear it. Fits snug as it should although the lower arms are a bit baggy. The body length and arm length are nice and long.

Love this shirt! I got an xxl cause I didn’t want it to be to tight, so its a little loose in the body, but you can still feel the warmth. think this shirt has a ton of potential for just hanging around and winter sports. Love the style and functionality. This will be in regular rotation for sure!

Incredible Fit and VERY breathable material makes this my number one shirt for Fall hikes.

I am a big fan of the Smartwool all-wool base layers and have several of the thermal and the all-season. It took me a few minutes to get used to the intraknit base layer. It fits a little more snuggly and lays around my neck a bit differently. So if you are like me, know that there will be a difference and you will notice it. At first! In the end, though, it offers the warmth and quality of the all-wool variety and disappears on your skin after wearing it for a short time. It feels about as warm as the all-wool and moves well on my body.

Clearly well made and comfortable against the skin. I bought this after using the Smartwool selection tool where I said this would be used casually (not active) in <25 degree F weather. I have the garment on and I'm sitting indoors writing this and the temperature is 67 F and I really can't say I'm all that warm. That makes me wonder just how comfortable I'd be outdoors where the temp is now 37 F and sleeting. Full disclosure: I'm old. Nevertheless I'm glad I bought it.

Wore it once (overnight in a sleeping bag). next morning fabric was pilling.

I've been slowly trading out my quick-dry clothing for wool. It feels better, keeps me smelling better and seems to be more comfortable in either warm or cold weather.

An awesome lightweight base layer that doesn't sacrifice warmth. I use this primarily for snowboarding. Where I'm from, I tend to ride in very cold conditions. This layer gives me plenty of warmth beneath my mid layer and shell jacket. I also like how it fits tight, yet it doesn't restrict your mobility.

I wanted to like this layer. It almost immediately started piling. And, looked bad after one gentle cycle wash in cold water; with threads coming apart. It continued to decline over a year of limited wearing and washing. And, has developed two holes at the wait line from friction. Save your money and try something different. It was light and had pretty good thermal regulation. It just didn't have the value that I was hoping for.

The fit and comfort are great. Using these for cross country ski days as a base layer under my shell jacket. Wicking is perfect and the fabric is soft.