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Women's Base Layer Tops
(135 products)Products (135)
Sort: Best Match
REI Co-opMidweight Long-Sleeve Base Layer Top - Women's
$26.83 - $54.95Underwear Weight:MidweightSize Type:Regular, PlusREI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's
$79.95Underwear Weight:LightweightSize Type:RegularREI Co-opMidweight Base Layer Half-Zip Top - Women's
$59.95Underwear Weight:MidweightSize Type:Regular, Plus- Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Women's
$115.00Underwear Weight:MidweightSize Type:Regular, Plus SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's
$53.83 - $90.00Underwear Weight:LightweightSize Type:Regular, Plus- Top Rated
REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Women's
$99.95Underwear Weight:HeavyweightSize Type:Regular, Plus - Top Rated
tasc PerformanceElevation Merino T-Shirt - Women's
$54.73Save 30%compared to  $79.00Members use code OUTJAN25 for $20 off $100+ at REI OutletUnderwear Weight:LightweightSize Type:Regular, PlusREI OUTLET - Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's
$89.95Underwear Weight:LightweightSize Type:Regular - Top Rated
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Women's
$62.83 - $105.00Underwear Weight:MidweightSize Type:Regular, Plus - Top Rated
REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Women's
$104.95Underwear Weight:HeavyweightSize Type:Regular, Plus - Top Rated
SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women's
$120.00Underwear Weight:MidweightSize Type:Regular, Plus Free CountryMicrotech Heat Cocaber Base Layer Top - Women's
$34.73Save 30%compared to  $50.00Members use code OUTJAN25 for $20 off $100+ at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLETREI Co-opMerino 185 Base Layer Top - Women's
$69.95Underwear Weight:LightweightSize Type:RegularFree CountryForce Grid Fleece Base Layer Top - Women's
$34.73Save 30%compared to  $50.00Members use code OUTJAN25 for $20 off $100+ at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLETHelly HansenLIFA Merino Midweight 2-In-1 Graphic Half-Zip Base Layer Top - Women's
$86.73 - $89.73Save 25% - 27%compared to  $120.00Members use code OUTJAN25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET- Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's Plus Sizes
$23.83 - $79.95Underwear Weight:LightweightSize Type:Plus - Top Rated
Icebreaker260 Tech Long-Sleeve Crewe Base Layer Top - Women's
$125.00Underwear Weight:HeavyweightSize Type:Regular, Plus Helly HansenHH Lifa Active Crew Base Layer Top - Women's
$39.73Save 33%compared to  $60.00Members use code OUTJAN25 for $20 off $100+ at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLETPatagoniaCapilene Midweight Zip-Neck Base Layer Top - Women's
$99.00Underwear Weight:MidweightSize Type:RegularCraftCORE Dry Active Comfort Base Layer Top - Women's
$44.73Save 31%compared to  $64.95Members use code OUTJAN25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLETHalfdaysJohnson Base Layer Top - Women's
$85.00Underwear Weight:UltralightweightSize Type:Regular, PlusHelly HansenLifa Merino Midweight Graphic Base Layer Top - Women's
$79.73 - $82.73Save 24% - 27%compared to  $110.00Members use code OUTJAN25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLETKari TraaJuliane Wool Half-Zip Base Layer Top - Women's
$104.73Save 25%compared to  $140.00Members use code OUTJAN25 for $20 off $100+ at REI OutletUnderwear Weight:HeavyweightSize Type:RegularREI OUTLET- Top Rated
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Cloud Dye Base Layer Top - Women's
$115.00Underwear Weight:MidweightSize Type:Regular Terramar3.0 Thermawool Half-Zip Base Layer Top - Women's
$56.73Save 24%compared to  $75.00Members use code OUTJAN25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLETREI Co-opLightweight Base Layer Long-Sleeve Crew Top - Women's
$27.93Save 30%compared to  $39.95Underwear Weight:LightweightSize Type:Regular- Top Rated
REI Co-opLightweight Base Layer Long-Sleeve Crew Top - Women's Plus Sizes
$27.93Save 30%compared to  $39.95Underwear Weight:LightweightSize Type:Plus SmartwoolClassic All-Season Merino Base Layer Long-Sleeve Shirt - Women's
$66.73Save 25%compared to  $90.00Members use code OUTJAN25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLETKari TraaFryd Long-Sleeve Base Layer Top - Women's
$41.73Save 30%compared to  $60.00Members use code OUTJAN25 for $20 off $100+ at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLETKari TraaLune Long-Sleeve Base Layer Top - Women's
$48.73Save 25%compared to  $65.00Members use code OUTJAN25 for $20 off $100+ at REI OutletUnderwear Weight:HeavyweightSize Type:RegularREI OUTLET
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