Customer Reviews Smartwool Merino 250 Base Layer Crew

The warmest shirt I have ever owned. I have used it multiple times already and it always keeps me incredibly toasty...too toasty sometimes I have to de-layer a bit!

I'm obsessed with this shirt, I wear it all the time. It has started to pill a little bit but that's honestly because I probable wear it too much. I will definitely be buying more.

Nice lightweight underlayer that works under any type of shirt or other sweater. Packable.

I have worn this product multiple times and have loved the feel and warmth without disappointment each time

A basic base layer. Always need them for skiing adventures. This one fits the bill. Only wish it had thumb holes.

A very warm and fashionable base layer that I would also wear as a shirt just hanging around the house or out with friends, or under a vest on a cool fall day hike in New England.

Nice fit but a little itchy. Does not stop me from wearing it tho'!

Love the layer system. I wore this and another together on my adventures through the German Christmas markets. It kept me warm and dry.

I'm amazed at all the Smartwool products I have- they are warm enough when it is cold, but not overbearing when it's warm.

I love the Smartwool base layer it's my every day winter start. Wool works best in cold, damp conditions "raw".

Love the lightweight and very warm combo! Great fit, not to tight, not too loose. Great versitility - baselayer or just single layer.

Love smart wool! This base layer is everything I need! I would buy 1 in every color. They layer great and aren't restrictive or scratchy.

Love the fit the length and the comfort. Great base layer. Seems to be slightly anti-stink as well?

Coupled this base layer with the Smartwool jacket for a 16 mile winter hike in wind gusts and 30 degree weather. Stayed comfortably warm and remained stylish going out to dinner with friends later in the day. Planning to wear this kit during a Scouting Klondike weekend with low 30 degree temperatures and several inches of snow.

The perfect thickness of a baselayer, not too thin, not too thick, awesome neutral color. Love it! Used it the first week I got it on our backpacking trip in Dec!

Again, smartwool makes a great product - warm, fits nicely, not itchy!

Coupled this base layer with the Smartwool jacket for a 16 mile winter hike in wind gusts and 30 degree weather. Stayed comfortably warm and remained stylish going out to dinner with friends later in the day. Planning to wear this kit during a Scouting Klondike weekend with low 30 degree temperatures and several inches of snow.

Good fit, comfortable and warm. Love the cut of the shoulders.

Very comfortable and perfect to wear under layers, or with just a vest over it for warmer winter days

My work wardrobe includes a dozen SmartWool long sleeves. This is now my new favorite one.

Comfortable, fits well and just the right layering warmth.

Lightweight, warm, and soft. I only wish it wasn't white!

I already have several wool base layer shirts like this... not all from Smartwool, but I do prefer Smartwool. I like that this one is a bit thicker than most. Love the seems over the shoulder area (very non-obtrusive).

Love the colors and warmth it provides. perfect base layer.

Very soft and lightweight while keeping me warm. The base layer fits close without binding.