Customer Reviews Smartwool Merino 250 Base Layer Crew

Bought for daughter size 2-4. After reading dozens of reviews, decided size S would fit. She is 5'6/ 130 lb athletic slim build. Small is very loose in the back and about 2" too long in sleeves. Love the color and style, and shirt is comfortable/ not scratchy. Returning it- may order the XS.

I have worn base layers all my life, and Smartwool tops are the absolute best, in my opinion. Ha! I just checked Poshmark, thinking I could find a "gently used" one for a low price, HA!, they hold their value! Mine also look as good as new, although some are nearly 10 years old -

I've been a Smartwool fan for decades now. I'm an outdoors enthusiast. Favorite time of year for the outdoors is winter, and favorite sport is XC skiing. Lots of sweat and then lots of cold chill. Would never go without smartwool again. Feels great against the skin. Doesn't hold sweat against the skin after the body starts to cool down. Great for casual wear all winter long too. Wouldn't be without it ever again. I'm 5'6", 150 lbs, and size large is perfect. Hugs the skin nicely, without being tight.

Underplayed for backcountry skiing.

Wear under PJ's and also an underlayer outside on cold Midwest days.

Everyday. I wear these Smartwool tops instead of cotton tees. During winter they layer perfectly under a flannel shirt. I have several colors. They feel so good and breathe even on warmer days.

Love the navy with red Cross pattern. Can wear it for work outs or cool light sweater with jeans. Lots of compliments.

Love these tops! It is fitted so I size up one size. Warm but not too thick

This top is comfortable and warm. It is not too heavy and fits comfortably under my tops. I am 5'7" and weigh 135 lbs and the medium fits perfectly. I have long arms and the sleeve length is perfect. This is a great product.

A MINNESOTA staple ! I love these tops Warm, well made & a nice selection of colors. I'm 5ft - 100 lbs & wear a size XS. The fit is great Thank you Smartwool !

I use this product as an undergarment for running in cold weather. Love the comfort and the warmth it provides.

Love this top-not itchy, warm but not bulky. Can wear alone, layered and dressed up or down

It's my favorite most versatile item of clothing I own. I love to layer it in cold weather, or to create an outfit. It is warm, cozy and comfortable

I have used smart wool tops on my morning walks for decades. When the weather is cold, I layer up to two and when it's milder, just one. These tops are incredible. They wash up well and are worth the expenditure because they are durable. I have four smart wool tops. I highly recommend them.

Fit well and temperature regulating but I did find it itchy. Was hoping it would be more soft. I purchased a M which is the size I wear in most brands.

I layer this under my vest for Fall weather and love the warmth it provides! The patter is super fun as well. Winter time I use it as my base layer for outdoor sports and it keeps me warm and dry.

These are my go-to base layers for both touring and resort days. They're warm, with a good fit and they're not itchy. No complaints!

I volunteer for the National Park Service. I wear this under my uniform shirt. It is the perfect way to add warmth if needed and remain cool on those hotter days

Very pretty and well made leggings quality wise but very tight on me, I like compression leggings but these felt like they were squeezing the blood out of me and I’m small, only 5’2 and 115 lbs. I usually wear XS/S but the small where so tight I could barely put them on… very disappointed, I returned them.

Love the fabric & colors. Perfect for cold winter days when you don't want a lot of bulk or like to layer. Only reason for 4 starts is it runs a little small.

Love the fabric & colors. Perfect for cold winter days when you don't want a lot of bulk or like to layer. Only reason for 4 starts is it runs a little small.

Fabulous warmth without weight! Wash beautifully. Perfect for skiing and hiking, but also lounging at home.

This is my go to under garment for cold weather. It keeps me toasty even on those really cold days. Smart wool makes the best wool products I have ever purchased.

I am traveling by train and found the weight/warmth to be perfect. It packs well, wears well for multiple days and it look great.

wow - do I LOVE this shirt! It's the perfect warm layer that can be worn alone or under another layer. I will be purchasing multiples! I bought an XL for some looseness - the "appropriate" size would have been skin tight.