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Underwear
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- Arc'teryxIonia Merino Wool Base Layer Top - Men'sTop Rated$90.00Underwear Weight:MidweightSize Type:Regular, Big
- REI Co-opLightweight Base Layer Long-Sleeve Crew Top - Women's Plus SizesTop Rated$9.83Save 75%compared to  $39.95Underwear Weight:LightweightSize Type:Plus
- Arms of Andes160 Ultralight Alpaca Wool Base Layer Leggings - Men's$85.00Underwear Weight:UltralightweightSize Type:Regular, Big
- Kari TraaFryd Base Layer Pants - Women's$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Men'sTop Rated$99.00Underwear Weight:MidweightSize Type:Regular, Big
- Kari TraaFloke Base Layer Pants - Women's$64.73Save 35%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SaxxUltra Super Soft Boxer Briefs - Men's$25.73Save 24%compared to  $34.00Size Type:Regular, BigREI OUTLET
- SpraywayEffra Crew Base Layer Top - Women's$36.73Save 26%compared to  $49.95Underwear Weight:HeavyweightSize Type:Regular, PlusREI OUTLET
- Arc'teryxLana Merino Wool Crew Base Layer Top - Women's$90.00Underwear Weight:LightweightSize Type:Regular, Plus
- Icebreaker200 Oasis Sonebula Base Layer Leggings - Women's$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- IcebreakerMerino 200 Oasis Thermal Base Layer Leggings - Women's$78.73Save 25%compared to  $105.00Underwear Weight:MidweightSize Type:Regular, PlusREI OUTLET
- IcebreakerMerino 200 Oasis Base Layer Leggings - Kids'$41.93Save 30%compared to  $60.00Underwear Weight:LightweightSize Type:Regular
- IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Women'sTop Rated$99.73Save 26%compared to  $135.00Underwear Weight:HeavyweightSize Type:Regular, PlusREI OUTLET
- SmartwoolClassic All-Season Merino 3/4 Base Layer Bottoms - Men's$75.00Underwear Weight:LightweightSize Type:Regular, Big
- Helly HansenLIFA Merino Midweight 2-In-1 Base Layer Pants - Women's$69.73Save 30%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's$130.00Underwear Weight:LightweightSize Type:Regular
- SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Women's$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, PlusREI OUTLET
- StancePalmer Boxer Briefs - Men's$18.73Save 25%compared to  $25.00Size Type:Regular, BigREI OUTLET
- Arc'teryxRho Base Layer Bottoms - Women's$79.73Save 20%compared to  $100.00Underwear Weight:MidweightSize Type:Regular, PlusREI OUTLET
- StanceRamp Camo Boxer Briefs - Men's$22.73Save 24%compared to  $30.00Size Type:RegularREI OUTLET
- SpraywayEffra Leggings Base Layer Bottoms - Women's$36.73Save 26%compared to  $49.95Underwear Weight:HeavyweightSize Type:Regular, PlusREI OUTLET
- StanceThe Vacationeer Boxer Briefs - Men's$19.73Save 26%compared to  $27.00Size Type:RegularREI OUTLET
- Oya Femtech ApparelRemovable Inserts - Women's - Package of 4$20.00
- Royal RobbinsReadyDry 7" Boxer Briefs - Men's$21.73Save 27%compared to  $30.00Size Type:BigREI OUTLET
- Kari TraaLilja Base Layer Pants - Women's$49.73Save 24%compared to  $66.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaSmekker Base Layer Pants - Women's$89.73Save 25%compared to  $120.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men'sTop Rated$105.00Underwear Weight:MidweightSize Type:Regular, Big
- Sale Ends TodayCraftActive Intensity Base Layer Pants - Women's$22.73Save 58%compared to  $54.95Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaRose High-Waist Base Layer Pants - Women's$76.73Save 30%compared to  $110.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- prAnaSculpt Send-Off Bra$49.73Save 27%compared to  $69.00Bra Support:Medium ImpactSupport Style:Compression / EncapsulationFabric:Main: 84% recycled polyester/16% elastane; contrast: 83% recycled polyester/17% spandexREI OUTLET
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