REI Co-op Lightweight Base Layer Bottoms - Kids'
Get your little sidekick dressed for adventure with the REI Co-op Lightweight base layer bottoms for kids. Designed for warmth, these bottoms are easy to pull on and great for layering.
- Recycled polyester/spandex printed jersey fabric is soft and sweat-wicking
- 200 g/m2 fabric weight offers lightweight warmth
- UPF 50+ sun protection
- Low-profile waistband keeps kids comfortable as they move
- Designed to hug the body for optimum performance
- Soft, durable flatlock seams are smooth and comfortable
- Size S Kids has an inseam length of 21.75 in.
- Size M (10–12) Kids has a weight of 4.2 oz. (120 g)
- Machine wash cold, gentle cycle; do not use bleach or fabric softeners; tumble dry low
- Note: not intended for sleepwear
- 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
- Contains materials that meet the bluesign® criteria
Imported.
View all REI Co-op Kids' Base Layer Bottoms| Best Use | Multisport |
|---|---|
| Fabric | 82% recycled polyester/18% spandex (bluesign approved) |
| Sun-Protective Fabric | Yes |
| UPF Rating | 50+ |
| Moisture Wicking | Yes |
| Underwear Weight | Lightweight |
| Inseam (in.) | 21.75 inches |
| Gender | Kids' |
| Sustainability | Contains recycled materials Contains materials that meet the bluesign® criteria From a Climate Label Certified brand |
| XXS | XS | S | M | L | XL | |
|---|---|---|---|---|---|---|
| Numerical Size | 5 | 6-7 | 8 | 10 | 12 | 14 |
| Height Range | 45 | 47 1/2 - 50 | 52 | 57 | 61 1/2 | 65 1/2 |
| Across Shoulder | 11 | 12 1/4 | 13 | 13 1/2 | 14 | 14 3/4 |
| Chest | 23 | 24 - 25 | 26 - 27 | 28 - 29 1/2 | 30 1/2 - 31 1/2 | 32 - 33 |
| Sleeve Length | 21 | 22 - 23 1/2 | 24 - 25 | 26 - 27 | 27 1/2 - 28 1/2 | 29 1/4 - 30 1/4 |
| Waist | 21 1/4 | 22 - 23 | 24 - 25 | 26 - 27 | 27 1/2 - 28 1/2 | 28 3/4 - 29 3/4 |
| Hip | 23 3/4 | 24 1/4 - 26 1/4 | 27 - 28 | 29 - 31 | 32 - 33 | 34 - 35 |
| Inseam | 19 | 21 - 22 3/4 | 23 - 24 | 25 - 26 1/2 | 27 - 29 | 29 1/2 - 30 1/2 |
Sizing Notes
Measurements are stated in inches unless otherwise indicated. Size chart values represent body measurements, not garment measurements.
Inseam is measured to the floor.
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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cute and cozy
I regularly buy kids clothing instead of women's clothing due to the price difference and these did not disappoint. They are so soft, have the perfect amount of stretch and were a great base layer under my fleece pants in the cold Colorado mountains.
Comfy but not warm
I like these pull-on pants but they are not warm enough for winter, better for lounge wear when it's warmer weather. Silky and comfortable.
SO SOFT
Got these for my 6 year old son. They run true to size. He has worn them as a baselayer for winter camping and they keep him cozy warm. These are SO SOFT. He is always reaching for these to wear as pajamas at home. Super happy with this purchase.
Very comfortable
Very soft! I like them so much I grabbed a second pair in another color.
Great PJ Set
Comfortable, versatile, great pattern and fit. We love it!
Runs small
Good, but runs small. Seems like the quality is there.