REI Co-op Midweight Long Underwear Bottoms - Kids'
This product is not available. Good news: we have a newer version.
Designed to keep them warm while wicking away moisture, the kids' REI midweight long underwear bottoms are the ideal base layer for highly aerobic cold-weather fun like skiing, hiking and snowshoeing.
Shop newer version- Durable yet soft polyester/spandex blend fabric wicks moisture and dries quickly
- Mineral-based LAVA™ finish keeps fabric odor-free
- Flatseam construction, low-profile waistband and crotch gusset keep you comfortable as you move
- UPF 50 sun protection
- Fly opening
- Fitted
- REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world
| Best Use | Multisport |
|---|---|
| Fabric | 89% polyester/11% spandex |
| Sun-Protective Fabric | Yes |
| UPF Rating | 50 |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Underwear Weight | Midweight |
| Gender | Girls' Boys' |
| Sustainability | From a Climate Label Certified brand |
Better gear is built together
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.
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Should fit, Not all sizes the same cut. :(
Not all sizes the same cut. Be sure to try on. I purchased these as 2nd pair for our ski trip. However these are most of 3/4 " shorter in the legs and smaller in the bottoms as well. Not the same size as the first pair. We have the XS REI Co-Op mid-weight bottoms in Indian ocean blue.