Skip to search results
loaded 32 results
Smartwool Base Layer Tops: Deals
(32 products)Products (32)
Sort: Best Match
- SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women'sTop Rated$89.93 - $130.00Underwear Weight:MidweightSize Type:Regular, Plus
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Women'sNew arrival$84.73Save 26%compared to  $115.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Men'sTop Rated$79.93 - $125.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Women'sTop Rated$79.93 - $125.00Underwear Weight:MidweightSize Type:Regular, Plus
- SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Men'sTop Rated$89.93 - $130.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men'sTop Rated$66.93 - $100.00Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's$69.93 - $100.00Underwear Weight:LightweightSize Type:Regular, Plus
- SmartwoolClassic All-Season Merino T-Shirt - Men's$59.93 - $95.00Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Women'sTop Rated$69.93 - $105.00Size Type:Regular
- SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's$99.93 - $150.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's$92.73 - $96.73Save 25% - 28%compared to  $130.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- SmartwoolIntraknit Thermal Merino Base Layer Quarter-Zip Top - Men'sNew arrival$104.73Save 25%compared to  $140.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- SmartwoolIntraknit Thermal Merino Base Layer Quarter-Zip Top - Men's$89.93 - $140.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolClassic Thermal Merino Colorblock Crew Base Layer Top - Men'sNew arrival$96.73Save 25%compared to  $130.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Women'sTop Rated$81.73 - $84.73Save 26% - 28%compared to  $115.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolIntraknit Thermal Max Merino Quarter-Zip Base Layer Top - Men'sNew arrival$115.73Save 25%compared to  $155.00Underwear Weight:HeavyweightSize Type:Regular, BigREI OUTLET
- SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's$96.73Save 25%compared to  $130.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's$99.93 - $150.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolIntraknit Thermal Merino Colorblock Quarter-Zip Base Layer Top - Women's$89.93 - $140.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolClassic Thermal Merino Half-Zip Base Layer Hoodie - Women'sNew arrival$108.73Save 25%compared to  $145.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
Earn 15% in total rewards
Get 5% on all REI Co-op purchases plus the 10% Co-op Member Reward you earn on eligible full-price purchases.
Apply now
Terms apply- SmartwoolClassic Thermal Merino Colorblock Crew Base Layer Top - Women's$89.93Save 30%compared to  $130.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolIntraknit Thermal Merino Base Layer Hoodie - Men'sNew arrival$134.73Save 25%compared to  $180.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- SmartwoolIntraknit Thermal Merino Base Layer Colorblock Crew - Men's$96.73Save 25%compared to  $130.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- SmartwoolIntraknit Thermal Merino Colorblock Crew Base Layer Top - Men's$89.93 - $130.00Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolClassic Thermal Merino Mock Neck Base Layer Top - Women'sNew arrival$104.73Save 25%compared to  $140.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolIntraknit Thermal Max Merino Quarter-Zip Base Layer Top - Men's$99.93 - $155.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolIntraknit Thermal Max Merino Quarter-Zip Base Layer Top - Women'sNew arrival$115.73Save 25%compared to  $155.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Base Layer Hoodie - Men's$108.73Save 25%compared to  $145.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'$48.73Save 25%compared to  $65.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolIntraknit Thermal Max Merino Base Layer Pattern Hoodie - Women's$114.73Save 30%compared to  $165.00Size Type:RegularREI OUTLET
1–30 of 32 products
Sort: Best Match


































































































