REI Co-op Lightweight Crew Base Layer Top - Infants'/Toddlers'
Start layering your little ones with this 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.
- Polyester/spandex blend fabric is soft and fast drying
- Odor-control treatment regenerates between laundry days
- Designed to hug your tot as they move
- Soft, durable seams are smooth to the touch
- Extended back hem stays tucked in when they lean forward
- UPF 50 sun protection
- Made using bluesign®-approved materials, which conserve resources and protect the health of the environment, workers and wearer (your tot!)
- 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
- Made in a Fair Trade Certified™ factory
Imported.
View all REI Co-op Kids' Base Layer Tops| Best 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 |
| Gender | Toddlers' Infants' |
| Sustainability | Fair Trade Certified™ factory Contains materials that meet the bluesign® criteria From a Climate Label Certified brand |
| 0-3 MO | 3-6 MO | 6-12 MO | 12-18 MO | 18-24 MO | 2 T | 3 T | 4 T | |
|---|---|---|---|---|---|---|---|---|
| Height Range | 24 | 27 | 30.5 | 33 | 35 | 35 | 38 | 41 |
| Weight Range | 10-15 lbs. | 15-20 lbs. | 20-25 lbs. | 25-28 lbs. | 28-32 lbs. | 28-32 lbs. | 32-35 lbs. | 35-40 lbs. |
| Chest | 17 | 18 | 19 | 19.75 | 20.5 | 20.5 | 21 | 22 |
| Sleeve Length | 12 | 13 | 14.5 | 15.5 | 17.5 | 17.5 | 18.5 | 19.75 |
| Waist | 17.5 | 18.5 | 19.5 | 20.25 | 21.5 | 21.5 | 22 | 22.5 |
| Hip | 17.5 | 18.5 | 19.5 | 20.25 | 21 | 21 | 21.5 | 22 |
| Inseam | 8.5 | 10 | 12 | 13.5 | 14 | 14 | 15.5 | 17 |
Sizing Notes
Measurements are stated in inches unless otherwise indicated. Size chart values represent body measurements, not garment measurements.
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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Great lightweight layers for little ones!
I got these for my little guy for sleeping and for under layers later this winter. They are so soft and stretchy, he likes them. They stretch and feel similar to his bamboo jammies he wears at home. Sizing was a bit tricky to figure out since our guy is tall, with a long torso, narrow waist, and shorter legs. He fits 3T in most brands right now but is between sizes on the REI chart (his weight and height do not line up). I opted to go up the next size for some growing room. Only drawback is I have to roll the waist so they don't fall down. But he's got lots of length to grow into and should fit in these for the next year.
Awesome Layer for my 11 Month Old
My partner and I both love these sets of layers by REI. We have both the blue & orange. It’s one of those essential items that we will never forget to pack haha they look good but more importantly, they kept my son protected from the weather. They are light and breathable and the layers can easily be added on top. He rocked this hiking out in the sun 80+ and kept warm at camp, layered up in 30-60 degree weather. If you are looking for a dependable layer that looks pretty cool too, this is it
Great base layer at a great price!
These really are the best! So soft! We had a 2T set that my daughter wore under her snowsuit all the time for snow play, skiing, etc. It fit from 1.5 years through the winter when she was 3.5 and still looks brand new. Now back to buy the next size up. We have a mid weight set too, but I still think these are a little softer.
Great for everything
These are the best. My favorite was the bright orange ones with all the little outdoor characters. I have three sets in different colors and sizes. They are good for everything, pjs, day outfits, hiking, camping, layering obviously. Was going to buy another one since kiddo grew but it says it not available. Hope they come back!
Worth it, bro!
Bro, dude these are fantastic, bro. Like for real, bro, they've doubled as camping PJs and like the graphics get our kiddo excited about putting them on (lil bro often wants to just run around in the buff). Highly recommend, bro. Highly recommend.
Daughter Loves them
My daughter loves these, she loves the colors and patterns. My daughter is a little small for her age, so its hard to tell, but I think these run a little big. We got the 4T size and she's about to turn 5, and they're baggy on her, they should last all ski season and summer camping season.
Perfect for layering
Works great to layer under Halloween costumes on those cold October nights and will work great as a layer when my little plays in the snow or goes on snowshoeing adventures with my in the carrier.
Comfy, looks good, fits well
Our go to winter base layer for our 2 yo daughter. It’s soft and looks good. 2T fits great