Smartwool  Classic Thermal Merino Crew Base Layer Top - Kids'

I bought this for my 11-year-old son to use as pajamas on an upcoming back packing trip he is doing with Boy Scouts. My son is a VERY skinny kid and always cold, so I hoped these would be warm. This past weekend, he got a chance to "test" this top when he was invited to go along on a camping trip with a friend. When he came home he said he loved it! He said it kept him warm and cozy in his sleeping bag, even though he is skinny. This is a HIGH endorsement from him. He has used this sleeping bag on many camping trips and is often cold. This past weekend he was at a higher altitude, on a particularly cold/rainy weekend. I highly recommend this top. It will keep you child "warm and cozy" in the cold.

I am a short, relatively petite woman for whom regular sizes are always too long, especially sleeves. The Smartwool Kid's Lg. fits me perfectly. Also, I cannot wear normal wool, but Smartwool in the midweight is a wonderful first layer for N. Calif. winter wear. With a fleece vest over it, I am comfortable at home with the heat turned down a notch. And, compared to the Women's version, it's a bargain! There is nothing I don't like about this "underwear" shirt (it looks good out, too).

We purchased both this item and a comparable REI shirt. The SmartWool shirt seemed a little bit warmer, especially when exercising. However, the REI shirt (which is about the thickness of most T-shirts) was more than sufficient. The SmartWool shirt actually gets very warm when you start exercising whereas the REI one is just about right. If you are not moving around a lot and want to stay a bit warmer, the SmartWool might be the way to go (it's also a bit thicker and more sweater-like).

Not the thin base layer I expected, but it’s soft and thick and could be an under layer or worn by itself. (Softer and thicker than the REI brand version.)

Comfortable, soft, and warm shirt. While it is lightweight (to feel), is thick enough to produce adequate warmth. Washes well (so far). The shirt does have more of a boxy fit, and therefore, is not tight fitting like some long underwear.

We used these in Hawaii as PJs as well as in Utah under ski clothes. They aren’t itchy and we love the cute colors. Wool is known for being a natural fiber that regulates body temperature so it keeps you cool in the summer and warm in the winter. We’re going on a road trip and plan to wear these 3 nights in a row then wash. Saves space in the suitcase and no, they don’t start to stink until day 4.

My son wore this to the zoo (along with his new merino socks!) and loved it. He was hot (it's 110 out) but his sweat died so fast it wasn't uncomfortable and I didn't have to worry about sunblock (hate the stuff). We also took it on vacation and he wore it 4 or 5 days of the 8 we were gone. I hand washed it once (no washing machine available) and then it fell in the creek. After it dried, we finally retired it to the dirt laundry. I was really impressed with how well it wore. He had it on creeks, in the woods, out fishing, playing in the backyard, in the airport - it looked just as good at the end (after it dried from its creek bath) as it did at the beginning - it was just finally smelling like it needed to be laundered! I was hesitant to pay this price for a kids shirt but it was well worth it.

I bought this for my daughter in anticipation of an Alaska vacation. This baselayer couldn't have worked out any more perfectly. It kept my daughter warm with no complaints, and when she was too hot, she could take it off and it rolls down to almost nothing and fits in my pocket! This will be put in the regular rotation now that we are back home. A baselayer that looks great, functions great, and doesn't elicit complaints from my 8 year old? It's the rare trifecta.

Bought an XL for my son who's 11, 59in tall, 26in waist, 30in chest, and sleeves are already a couple inches too short. Shirt itself is also short. Going by the size chart this was supposed to be oversized for him if anything. Either I received a wrongly sized item, or smartwool sizing is way off, or, and I hope that's not the case, smartwool is trying to save on cost by shrinking the product.

This product is such a win win. Super warm, great for those days when everyone else wants to stay inside but you know Mother Nature will be so fun to ski/board, snowshoe and toboggan! Also great for the kids who is always cold in the winter! Best part, if its been a long day outside, they are comfy enough to go straight to bed in as pjs (might want to skip the big comforter tho!).