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Women's Base Layer Tops
(144 products)Products (144)
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- Sale Ends Today
CraftCore Dry Base-Layer Set - Women's
$43.73Save 41%compared to  $74.95Underwear Weight:LightweightSize Type:RegularREI OUTLET - Sale Ends Today
SmartwoolIntraknit Thermal Merino Quarter-Zip Base Layer Top - Women's
$69.73Save 50%compared to  $140.00Underwear Weight:MidweightSize Type:RegularREI OUTLET - Sale Ends Today
IcebreakerMerino 260 Vertex Long-Sleeve Half-Zip Natural Shades Base Layer Top - Women's
$64.73Save 56%compared to  $150.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET - Sale Ends Nov 25
SmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Women's
$97.49Save 25%compared to  $130.00Underwear Weight:MidweightSize Type:Regular - Sale Ends Nov 25
SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Women's
$71.19Save 25%compared to  $95.00Size Type:Regular - Sale Ends Nov 25
Kari TraaSara Long-Sleeve Base Layer Top - Women's
$74.99Save 25%compared to  $100.00Underwear Weight:HeavyweightSize Type:Regular - Sale Ends Nov 25
SmartwoolIntraknit Thermal Merino Colorblock Quarter-Zip Base Layer Top - Women's
$104.99Save 25%compared to  $140.00Size Type:Regular - Sale Ends Nov 25
Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Women's
$86.19Save 25%compared to  $115.00Underwear Weight:LightweightSize Type:Regular - Sale Ends Nov 25
Icebreaker125 Cool-Lite Merino Blend Sphere III Scoop T-Shirt - Women's
$56.19Save 25%compared to  $75.00Underwear Weight:LightweightSize Type:Regular - Sale Ends Nov 25
Kari TraaFaith Half-Zip Base Layer Top - Women's
$89.99Save 25%compared to  $120.00Underwear Weight:HeavyweightSize Type:Regular - Sale Ends Nov 25Top Rated
IcebreakerMerino 150 Tech Lite III Relaxed T-Shirt - Women's
$59.99Save 25%compared to  $80.00Underwear Weight:LightweightSize Type:Regular - Sale Ends Today
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Women's
$64.73Save 52%compared to  $135.00Size Type:RegularREI OUTLET - Sale Ends Nov 25
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Women's
$101.19Save 25%compared to  $135.00Underwear Weight:MidweightSize Type:Regular - Sale Ends Nov 25
SmartwoolClassic Thermal Merino Half-Zip Base Layer Hoodie - Women's
$108.69Save 25%compared to  $145.00Size Type:Regular - Sale Ends Nov 25Top Rated
Wild RyeHailey Half-Zip Base Layer Top - Women's
$101.19Save 25%compared to  $135.00Underwear Weight:MidweightSize Type:Regular, Plus - Sale Ends Nov 25Top Rated
Wild RyeEvie Raglan Base Layer Top - Women's
$93.69Save 25%compared to  $125.00Underwear Weight:LightweightSize Type:Regular, Plus - Sale Ends Nov 25Top Rated
Nani SwimwearUinta Base Layer Top - Women's
$63.69Save 20%compared to  $80.00Underwear Weight:MidweightSize Type:Regular, Plus - Sale Ends Nov 25
IcebreakerMerino 200 Sonebula Long-Sleeve Crew Base Layer Top - Women's
$89.99Save 25%compared to  $120.00Underwear Weight:LightweightSize Type:Regular - Sale Ends Nov 25
Kari TraaLucie Long-Sleeve Base Layer Top - Women's
$71.19Save 25%compared to  $95.00Underwear Weight:LightweightSize Type:Regular - Sale Ends Nov 25
Icebreaker200 ZoneKnit Long-Sleeve Crewe Base Layer Top - Women's
$112.49Save 25%compared to  $150.00Underwear Weight:MidweightSize Type:Regular - Sale Ends Nov 25New arrival
IcebreakerMerino Blend 260 ZoneKnit Seamless Long-Sleeve Crew Base Layer Top - Women's
$112.49Save 25%compared to  $150.00Underwear Weight:MidweightSize Type:Regular - Sale Ends Nov 25
SmartwoolIntraknit Active Long-Sleeve Base Layer Top - Women's
$82.49Save 25%compared to  $110.00Underwear Weight:MidweightSize Type:Regular - Sale Ends Nov 25
Icebreaker125 ZoneKnit Long-Sleeve Crewe Base Layer Top - Women's
$93.69Save 25%compared to  $125.00Underwear Weight:LightweightSize Type:Regular - Sale Ends Nov 25
SmartwoolClassic Thermal Merino Colorblock Quarter-Zip Base Layer Top - Women's
$93.69Save 25%compared to  $125.00Size Type:Regular - Sale Ends Nov 25
Kari TraaSmekker Half-Zip Base Layer Top - Women's
$97.49Save 25%compared to  $130.00Underwear Weight:LightweightSize Type:Regular - Sale Ends Nov 25
Kari TraaSval Long-Sleeve Base Layer Top - Women's
$59.99Save 25%compared to  $80.00Underwear Weight:LightweightSize Type:Regular - Sale Ends Nov 25
SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's
$97.49Save 25%compared to  $130.00Underwear Weight:MidweightSize Type:Regular - Sale Ends Nov 25Top Rated
Kari TraaRose Half-Zip Base Layer Top - Women's
$89.99Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:Regular - Sale Ends Today
IcebreakerMerino 200 Sonebula Long-Sleeve Half-Zip Hood Base Layer Top - Women's
$66.73Save 55%compared to  $150.00Underwear Weight:MidweightSize Type:RegularREI OUTLET - Sale Ends Today
IcebreakerMerino 260 Vertex Long-Sleeve Half-Zip Glacial Flow Base Layer Top - Women's
$64.73Save 56%compared to  $150.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
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