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Underwear: Deals
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- SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'Top Rated$46.73Save 28%compared to  $65.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Women'sTop Rated$78.73Save 25%compared to  $105.00Members use code LABORDAY2025 for an extra 20% off at REI OutletSize Type:Regular, PlusREI OUTLET
- Boody Eco WearG-String Thong Underwear - Women's - Package of 2$22.73Save 18%compared to  $27.95Members use code LABORDAY2025 for an extra 20% off at REI OutletSize Type:RegularREI OUTLET
- Sale Ends Sep 1REI Co-opLightweight Base Layer Bottoms - Kids'Top Rated$20.89Save 30%compared to  $29.95Underwear Weight:LightweightSize Type:Regular
- SmartwoolIntraknit Active Long-Sleeve Base Layer Top - Women's$39.83Save 63%compared to  $110.00Underwear Weight:MidweightSize Type:Regular
- Sale Ends Sep 1REI Co-opLightweight Half-Zip Base Layer Top - Men'sTop Rated$31.39Save 30%compared to  $44.95Underwear Weight:LightweightSize Type:Regular, Big, Tall
- SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's$92.73Save 28%compared to  $130.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- StanceFull Moon Boxer Briefs - Men's$22.73Save 24%compared to  $30.00Members use code LABORDAY2025 for an extra 20% off at REI OutletSize Type:RegularREI OUTLET
- Kari TraaFryd Base Layer Pants - Women's$29.83 - $65.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's$96.73Save 25%compared to  $130.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- PatagoniaCapilene Midweight Crew Base Layer Top - Women'sTop Rated$59.93 - $89.00Underwear Weight:MidweightSize Type:Regular, Plus
- SmartwoolClassic All Season Merino Long-Sleeve Base Layer Top - Men'sTop Rated$66.73Save 25%compared to  $90.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- Black DiamondSolution 150 Merino Base Layer Bottoms - Women'sTop Rated$79.73Save 27%compared to  $110.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- Boody Eco WearFull Briefs - Women's - Package of 2$25.73Save 19%compared to  $31.95Members use code LABORDAY2025 for an extra 20% off at REI OutletSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Lettuce Edge Crew Base Layer Top - Women's$82.73Save 28%compared to  $115.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- StanceSandy Beach Boxer Briefs - Men's$19.73Save 26%compared to  $27.00Members use code LABORDAY2025 for an extra 20% off at REI OutletSize Type:RegularREI OUTLET
- CraftActive Intensity Base Layer Pants - Women's$31.73Save 42%compared to  $54.95Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- Arc'teryxRho Heavyweight Base Layer Bottoms - Men'sTop Rated$96.73Save 19%compared to  $120.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- PatagoniaCapilene Midweight Base Layer Bottoms - Kids'$18.83Save 51%compared to  $39.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Men'sTop Rated$85.73Save 25%compared to  $115.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Women'sTop Rated$99.73Save 26%compared to  $135.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:HeavyweightSize Type:Regular, PlusREI OUTLET
- CraftCORE Dry Active Comfort Base Layer Top - Women's$39.73Save 38%compared to  $64.95Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- Helly HansenLIFA Merino Midweight 2-In-1 Base Layer Pants - Women's$69.73Save 30%compared to  $100.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:Regular, PlusREI OUTLET
- Helly HansenLIFA Merino Midweight Crew Base Layer Top - Women's$69.73Save 30%compared to  $100.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:Regular, PlusREI OUTLET
- StanceCurren Wholester Boxer Briefs - Men's$26.73Save 23%compared to  $35.00Members use code LABORDAY2025 for an extra 20% off at REI OutletSize Type:RegularREI OUTLET
- Arc'teryxRho LT Crew Neck Base Layer Top - Men'sTop Rated$70.93 - $100.00Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolIntraknit Active Base Layer Bottoms - Women's$59.83Save 45%compared to  $110.00Underwear Weight:LightweightSize Type:Regular
- SmartwoolIntraknit Thermal Max Merino Base Layer Bottoms - Women's$100.73Save 25%compared to  $135.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:HeavyweightSize Type:RegularREI OUTLET
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's Plus Sizes$29.83 - $89.95Underwear Weight:LightweightSize Type:Plus
- tasc PerformanceElevation Merino T-Shirt - Women's$49.73Save 37%compared to  $79.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
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