How to Choose Base Layers

A thermal base layer that wicks for warmth, the kids' REI Co-op Midweight base layer crew top helps keep them comfortable for all-day exploring and adventuring in colder weather.
Imported.
View all REI Co-op Kids' Base Layer Tops| Best Use | Multisport |
|---|---|
| Shirt Type | T-shirt |
| Fabric | 257 g/m² 87% recycled polyester/13% spandex (bluesign approved) |
| Sun-Protective Fabric | Yes |
| UPF Rating | 50+ |
| Moisture Wicking | Yes |
| Underwear Weight | Midweight |
| Sleeve Length | Long Sleeve |
| Thumbholes | Yes |
| Gender | Kids' |
| Sustainability | Contains materials that meet the bluesign® criteria Contains recycled materials From a Climate Label Certified brand |
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My son really likes this thermal as the only base layer under his ski jacket in 10-30 degree temperatures. He said it is comfortable, the right size, a good color, and the thumb holes are nice for helping to keep his hands warm under gloves.
Soft, sturdy, warm. Fits great and is sturdier than most kids baselayer items
Good quality. Fabric is a nice weight - soft and feels brushed on interior. My 7 year old is learning to ski and this set has kept her warm and dry.
From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.

