How to Choose Base Layers

Layer them up in the kids' Smartwool Classic Thermal Merino base layer bottoms. Warm, supersoft and thermoregulating, they're ideal for stop-and-go activities in the cold.
Imported.
View the Smartwool Classic Thermal Merino Product LineView all Smartwool Kids' Base Layer Bottoms| Best Use | Multisport |
|---|---|
| Fabric | 100% merino wool (exclusive of decoration and elastic) |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Underwear Weight | Midweight |
| Gender | Kids' |
Adding a review will require a valid email for verification
Super comfy and true to size fit.


Buy a lifetime $30 membership and make a $50 purchase by Sep 07, 2026.*
$7
10% Reward*
on this and every eligible full-price item*
+
$30
Bonus Card*
valid for 30 days after joining*
=
$37
Value