REI Co-op Merino Midweight Half-Zip Base Layer Top - Kids'
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Soft, moisture-wicking, 100% merino wool makes the REI merino midweight half-zip base layer top for kids an ideal first layer for high-output, cold-weather activities.
Shop similar products- Ultrafine 18.5-gauge merino wool offers a soft feel without the scratchiness
- Merino wool naturally wicks away sweat and resists odors
- Flat seams eliminate chafing
- Tall neck extends coverage; zipper with chin guard lets you adjust ventilation
- Droptail hem stays tucked in and is designed to work under a pack's hipbelt
- Designed to hug the body for optimum performance
- Machine washable
- 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
- Made in a Fair Trade Certified™ factory
Imported.
View all REI Co-op Kids' Base Layer TopsBest Use | Multisport |
---|---|
Shirt Type | Partial-zip |
Fabric | Merino wool |
Moisture Wicking | Yes |
Quick Drying | Yes |
Underwear Weight | Midweight |
Sleeve Length | Long Sleeve |
Gender | Girls' Boys' Kids' |
Sustainability | Fair Trade Certified™ factory 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.

