Merino Wool Boys' Underwear
(11 products)- REI Co-opMerino Midweight Base Layer Bottoms - Kids'Top Rated$49.95Underwear Weight:MidweightSize Type:Regular
- REI Co-opMerino Midweight Base Layer Crew Top - Kids'Top Rated$49.95Underwear Weight:MidweightSize Type:Regular
- Icebreaker260 Tech Thermal Base Layer Leggings - Kids'Top Rated$70.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolClassic Thermal Merino Base Layer Quarter-Zip Top - Kids'$51.93Save 25%compared to  $70.00Underwear Weight:MidweightSize Type:Regular
- Helly HansenGraphic Lifa Merino Base Layer Set - Kids'$74.73Save 32%compared to  $110.00Save an extra 25% off select styles at REI Outlet, thru 3/2.Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'$47.93 - $65.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'$47.93 - $65.00Underwear Weight:MidweightSize Type:Regular
- Icebreaker200 Oasis Crewe Long-Sleeve Base Layer Top - Kids'Top Rated$60.00Underwear Weight:MidweightSize Type:Regular
- Icebreaker200 Oasis Base Layer Leggings - Kids'$60.00Underwear Weight:MidweightSize Type:Regular
- IcebreakerMerino 200 Oasis Long-Sleeve Base Layer Crew Top - Kids'Top Rated$60.00Underwear Weight:MidweightSize Type:Regular
- IcebreakerMerino 200 Oasis Base Layer Leggings - Kids'$60.00Underwear Weight:LightweightSize Type:Regular
Get $130 in value
$30 in card rewards are yours when approved for the REI Co-op Mastercard by Mar 9. Plus, you can earn a $100 REI gift card after your first purchase. Terms apply.
Apply now

















