We love this brand and have recently tried kids thermal underwear and we love them as much as we love adults. So warm, does its job. My son wears 30 degrees under his clothes where I live and they keep my son warm. Depending on the size I will buy more. Not too tight and not loose. A crew-neck shirt, not a tortoise shell.

My son wears this under his baseball uniform during the cold season. It's light and warm. Wear it underneath your clothes if it's chilly, but don't bring sweaters or jackets.

I bought these for our bug bags and had to buy another pair because my son wears them all the time. He says they are so comfy and soft. Good quality.

Pros: Very good product. Good material. My daughter loves how the fabric feels and keeps her warm while exercising. The cuffs on the sleeves and ankles are too tight, causing restriction of movement!

Better than I expected, they are very soft and excellent quality! I ordered a set for my son, I will order it myself Comfortable, my 5 year old loved..

My son is very thin and lacks insulation, so he always has to wear thermal underwear in winter. He likes the way they sit. He said they're comfortable, but he forgets he's wearing them. They're breathable, it doesn't feel suffocated like other thermals, and it's warm. I recommend these and will order more.

Bought these for my daughter's winter school trip in February. She doesn't usually like to wear anything heavy under a t-shirt, but she goes outside all day, even when it rains. (February isn't that cold in the San Francisco Bay Area, but it'll be by the ocean, so it can be chilly and humid.) She tried them on and pulled on a pair of jeans and a sweatshirt to see how they did felt. She said they didn't hinder her movements and she was warm. Hopefully it will be warm in cold windy weather but…

They seem warm...we haven't worn them yet. But xs fits my tall 5 year old well. They will probably suit him next year too. But they are not too big.

My daughter is 5 1/2 and needs something to match her Halloween costume. Small - huge. The quality was very good, it felt very warm but it didn't fit her so I had to return it and the XS was out of stock. Pity :(

My daughter is 10 years old and is an average weight for her size but is a bit smaller than children her age. (Approximately 4 inches.) We are an average size 10/12. Fits her perfectly! Usually 10/12 is too much for them. She wore it on night hikes. She said it was comfortable and warm.

My daughter loves them. They fit great, true to size. They kept her warm and she loves that the inside is soft and fluffy. Our only complaint is that it smells like garlic inside. I washed them before putting them on and the smell has subsided but not entirely gone. I'm not sure if it will go away after a few washes but I hope so.