REI Co-op Trailsmith Cap - Kids'
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Shade your kiddo's head from the sun's rays with this cool, breathable REI Co-op Trailsmith kids' cap. It has airy mesh sides and adjusts for a custom-style fit.
Shop similar products- Mid-crown trucker-style hat has a moisture-wicking polyester sweatband
- Large, pliable bill shades the eyes and nose, while a strap back customizes the fit
- UPF 50+ sun protection
- Interior brim is made from recycled ocean plastic
- 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
Imported.
View the REI Co-op Trailsmith Product LineView all REI Co-op Kids' Ball CapsBest Use | Casual |
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Hat Style | Ball Cap |
Fabric | Polyester |
Lining Fabric | Polyester sweatband |
Sun-Protective Fabric | Yes |
UPF Rating | 50 |
Visor/Brim | Yes |
Length of Bill | 2.75 inches |
Gender | Kids' |
Sustainability | Contains recycled materials From a Climate Label Certified brand |
0 - 6 Months | 6 - 12 Months | 12 - 24 Months | 2 - 4T | 4 - 7 Years | 7 - 14 Years | |
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Head Circumference | 16 - 17 5/8 | 17 5/8 - 18 5/8 | 18 5/8 to 19 1/8 | 20 - 20 1/2 | 20 | 21 |
Sizing Notes
All measurements stated in inches.
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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Good for small adult heads, too!
I just bought this hat at an REI store today in the 4-7 year old size, and was thrilled to find a hat that actually fits my small head. I generally wear a 6 3/4 hat, which does not exist in this world of one-size-fits-all.
I am an adult who bought this hat for myself!
I love this hat and received compliments on it. When I tried it on in the store I had no idea it was a kids hat until after I purchased it. I love the bright colors, the venting and the fit! It’s now my go to for runs, hikes and walking my dog.
Perfect Kids Hat for Adults
Bought this kids hat thinking it was adult size. Fits perfectly on my 30 year old head and my boyfriend’s head. There’s plenty of room to spare too!
Perfect for BIG KIDS
I’ll add to the consensus, I too bought this thinking it was an adults cap. I have a big head and it fits great.
flexible and adjustable
cute! Got it for my 3.5 year old and it barely fit on the smallest setting. He'll be able to wear it for years!
Fits adults too :)
Fit me as an adult with a 22in circumference head! It didn't look odd either, looked and fit great!