How to Choose Base Layers

Make your tot's base layer this warm, breathable crew top from REI Co-op, and they'll play happily outside all day. It's great on its own for inside play, too.
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 (bluepass certified) |
| Sun-Protective Fabric | Yes |
| UPF Rating | 50+ |
| Moisture Wicking | Yes |
| Underwear Weight | Midweight |
| Sleeve Length | Long Sleeve |
| Gender | Toddlers' |
| Sustainability | Contains bluepass certified material Contains recycled materials From a Climate Label Certified brand |
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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.

