Icebreaker  Merino 260 Tech Long-Sleeve Crewe Thermal Top - Men's

I bought this for my ol'man (as well as the so-called heavy-weight base bottoms). He says that of all the base layer brands he has which include smartwool, Under Armour, and Arc'teryx, these offer the least warmth, worn in similar conditions. The top is really thin, compared to the others. Myself I have I.B. Vertex base tops that are extremely warm...they are listed as being 250 and are substantially 'heavier' than this base top. For us, this is a 'hard-pass'...he says ditto for the 300 g bottoms...

This shirt is really soft and seemed like good quality at first but after wearing it only a handful of times it has several small holes in it. I didn't tear it on anything sharp and I always air dry it after washing. Maybe I got a bad one but for the money spent I expected better quality. REI brand has held up much better.

I like having wool shirts for next to skin layering and for shirts in general. Polyester, nylon and other synthetics just do not do well in the stink department. I have had Icebreaker shirts before and they hold up relatively better than some other brands of wool shirts. The 200 and 260 is a perfect layer under a wool shirt or sweater and also by itself for spring and fall days. It wicks well and even when it gets damp, I still feel warm. It dries fast and I can wear it all day whether hiking, hunting, backpacking ordoing chores and it does not stink. I will be buying more as I phase out my synthetics.

I own the quarter zip ice breaker long underwear and it’s great. This shirt is different. The neck is too big and the fit is off making the shirt about as warm as a normal cotton t-shirt. The neck is so big it seems like a manufacturer defect.

Very warm, lightweight, soft. A big part of enjoying your cold weather adventures is having the right gear for the conditions. This has been a great addition to my cold weather go bag.

Just pulling this shirt on makes me feel like heading outside for a winter adventure! It is a perfect balance--heavy base layer, nicely stretchy, fits snug but certainly not tight. The Merino wool is maybe a touch itchy at first wear, but quickly softened up. Some might want a little more length in the hem, but perfect for my tastes. I bought a large and am 6', 185 pounds.

I bought this to wear as a base layer for running. It's not itchy and seems very nice quality. I would rate it a mid-weight layer. I wasn't sure from the photos if it was going to be loose or form fitting. It's form fitting but not overly snug so it works for a base layer. I've worn it under a Smartwool wind shirt on a breezy mid-30s run and was comfortable.

Wick away the wet and keep me warm!! Simply the way to go with cold weather riding.

This base layer is warm, soft, and looks great! I’ve been wearing icebreaker for years. This one replaces one that I have had for 10+ years ( the right arm developed a small hole in the forearm , maybe a snag)

Looking for a shirt that can be worn as a shirt or a base layer, this is the one. I own quite a few of other merino shirts and the problem that I run into is that they don’t always come out of the washer the same way they went in, I have not that problem with this shirt. One thing I don’t love is at if you hang them on a hanger the ends of the hanger stretch out the shoulders out so you have little bumps in the middle of your shoulders, but I have not found merino that does not do this.