REI Co-op Lightweight Crew Base Layer Top - Kids'
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Start layering your littles with the kids' warm, breathable REI Co-op Lightweight Crew base layer top. It features a made-to-move design and all of the comfy for a day of play.
Shop similar products- Polyester/spandex blend fabric is soft, fast drying and sweat-wicking
- Odor-control treatment regenerates between laundry days
- Thumbholes keep hands covered and sleeves in place
- Soft, durable seams are smooth to the touch
- UPF 50 sun protection
- 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 TopsBest Use | Multisport |
---|---|
Shirt Type | T-shirt |
Fabric | 82% polyester/18% spandex (bluesign approved) |
Sun-Protective Fabric | Yes |
UPF Rating | 50 |
Moisture Wicking | Yes |
Quick Drying | Yes |
Underwear Weight | Lightweight |
Sleeve Length | Long Sleeve |
Thumbholes | Yes |
Gender | Kids' |
Sustainability | 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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Nice fabric, lousy colors.
I like the material and the bit but the colors are pretty blah. Green camo and a blue that is something else but looks like camo. We don't need pink for girls but something less ugly and more versatile would be great. Even just a solid color.
My kids lives in this thing
I got these just as a baselayer but my son wore his as a shirt and then wore it for days. Its the only thing he wants to wear now. I ended up getting the red one also to mix it up for him
Perfect
My son loved the blue and lightweight of this long sleeve. Laundered nicely. Would purchase again in another color, other than camo. :)
Our little guy loves it
The material feels light but strong. Fun pattern looks like camo, which is a favorite in our household.
Great PJ Set
Comfortable, versatile, great pattern and fit. We love it!