I recently got the Thermajane Thermal Underwear set for my daughter, and it’s been a game-changer for cold weather activities. The first thing I noticed was how soft the fabric is—it feels like a cozy hug against her skin, and she didn’t complain once about itchiness or discomfort.

We tested these during a weekend ski trip, and they held up impressively. Even in freezing temps, my daughter stayed warm without overheating. The moisture-wicking feature really works; she came back from sledding sweaty but dry, and no funky smells lingered (parent win!).

The 4-way stretch is perfect for her non-stop energy—whether she was doing snow angels or racing to the hot cocoa stand, the underwear moved with her without riding up. I was skeptical about the fit under bulky snow pants, but the slim design layered seamlessly under her gear.

One note: sizing runs slightly large. We initially ordered a medium (she’s usually a size 8), and it had room to grow. After exchanging for a small, it fit like a dream—snug but not restrictive. The ankle length stopped just above her boots, but paired with tall socks, it wasn’t an issue.

Bonus: She loves the vibrant blue color so much that she now wears them as pajamas post-skiing! For the price, this set outperformed pricier brands we’ve tried. Just check the size chart carefully—it’s worth measuring twice.