REI Co-op Helmet Liner - Boys'
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Ideal for cool-weather starts, this REI helmet liner for boys fits snugly under his helmet or hood for added warmth.
Shop similar products- Ultrathin polyester with a bit of spandex stretches to fit, wicks away moisture and dries quickly to maintain warmth
- Flatseam construction and 4-way stretch improve comfort
- 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 all REI Co-op Boys' Hats| Best Use | Multisport |
|---|---|
| Fabric | 94% polyester/6% spandex |
| Gender | Boys' |
| Sustainability | From a Climate Label Certified brand |
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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.


