Arctic Hero Baby Boys’ Thermal Underwear - 4 Piece Waffle Knit Top and Long Johns (12M-4T)

These were just as good as the $60+ Patagonia and north face ones I bought my girls. They are super soft, great material and actually keep the kiddos warm however the only thing I would say is you need to size up. Both my girls are pretty petite (my 2 yr old still wears 18-24 months in regular clothing and most TTS 2T are usually a little oversized on her) and the 2T was still pretty snug. I would have sized up to a 3T

Too small

Bought this in a size up but it was so incredibly small she could not even fit it over her head. I purchased a 2t and it fit more like a 9-12 month.

This was warm and fits comfortably under my toddler’s cloth. Washing machine friendly and came out intact.

Seems very nice. Haven’t tried it outside yet but feels like it’ll be warm!

Runs small not much growing room

Highly recommended in cold weather. Keeps your child comfortable and warm.

This runs small. I got the size of 24m for my son. He’s 18 months and it is way too small for him. He’s in the 41st percentile for height and weight. The quality seems good!