

❄️ Keep her warm, dry, and unstoppable this winter!
Thermajane Thermal Underwear for Kids offers a premium base layer solution combining 92% polyester and 8% spandex for optimal warmth, moisture management, and flexibility. Designed with ultra-soft fleece lining and 4-way stretch, this set fits snugly under clothes without bulk, making it ideal for cold-weather activities like skiing, camping, and everyday wear. Machine washable and durable, it’s the essential winter wardrobe upgrade for active girls.



















| Care instructions | Machine Wash |
| Fabric type | 92% Polyester, 8% Spandex |
| Origin | Imported |
R**3
Cozy Comfort for Chilly Adventures
I recently purchased the Thermajane Girls Thermal Underwear Set for my daughter, and it proved to be a winter wardrobe essential, providing both warmth and comfort during chilly days. Paired with her cat ears for a playful touch, this base layer set exceeded our expectations in terms of quality and functionality. The first thing that caught my attention was the ultra-soft feel of the material. The fabric is gentle against the skin, ensuring that my daughter remained comfortable throughout the day. The thermal design efficiently retained body heat, keeping her warm without adding bulk to her outfit.
J**G
Perfect
Perfect for skiing. Kept my daughter warm in extreme cold. Comfy and well made. Great fit, especially as a base layer. Great value for money. My daughter still wears them now! Loved the color options.
Z**S
Family Fav
Love these! Buy them for my kids every year. They are great for layering, as pjs, loungewear and for under sportswear! Super soft on the inside and so easy to care for. True to size as well!
J**S
Comfortable
Our 10 year old daughter wears them under her cheer uniform. They keep her warm. They fir great. Thickness is perfect. They are comfortable and soft.
A**R
Warm, cozy thermal. Perfect under snow gear
Bought this for my daughter to wear when skiing in New England. It’s perfect and cozy and keeps her very warm. She loves the blue color and likes to wear them even after taking off her snow gear. We weren’t sure what size to get and ordered a size too large at first- the small fits like kids size 7/8, with room to grow.
M**N
Super soft and warm!!!
We purchased this thermal underwear for my daugher who was running a 5K in extremely cold windy conditions. It was very soft, fit snuggly so she could easily layer over other clothing items without being too snug. I was a bit concerned that the material would pill after washing and drying but no issues. Highly recommend!
E**L
Perfect for Pikachu costume!
During Halloween it was literally freezing and this kept my kid warm and cozy, yet comfortable to run around trick or treating. The pants weren't see through and the yellow was a perfect Pikachu match. The fabric is nice and smooth on the outside but the inside is slightly fuzzy and warm feeling. She paired this with a Pikachu headband and tail and was adorable. Since Halloween is over, this set is used as pajamas, so we got our $$ worth.
D**T
Soft and true to soze
Purchased these in red for my petite 10 year old daughter (she is usually a girls small/medium or size 7/8). The medium fit her great and the red is a true red. She loves them as pajamas now, but as the months get colder where we are, will be using them as a base layer when we play in the snow. She reported that they are cozy, soft and warm. We have washed them several times and they are still soft.
Trustpilot
4 days ago
3 days ago