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Base Layer Bottoms
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- Free CountryCloud Knit Base Layer Bottoms - Men's$26.73Save 33%compared to  $40.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- PatagoniaCapilene Thermal Weight Long-Underwear Bottoms - Men's$99.00Underwear Weight:HeavyweightSize Type:Regular, Big
- REI Co-opMerino Midweight Base Layer Bottoms - Kids'Top Rated$49.95Underwear Weight:MidweightSize Type:Regular
- Icebreaker260 Tech Base Layer Leggings - Women's$125.00Underwear Weight:HeavyweightSize Type:Regular, Plus
- REI Co-opLightweight Base Layer Bottoms - Kids'Top Rated$29.95Underwear Weight:LightweightSize Type:Regular
- SaxxRoast Master Midweight Base Layer Bottoms - Men's$47.73Save 36%compared to  $75.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Kari TraaSara Base Layer Pants - Women's$74.73Save 25%compared to  $100.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Arc'teryxRho LT Base Layer Bottoms - Men's$100.00Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolClassic Thermal Merino 3/4 Base Layer Bottoms - Men'sTop Rated$105.00Underwear Weight:MidweightSize Type:Regular, Big
- PatagoniaCapilene Midweight Base Layer Bottoms - Women's$89.00Size Type:Regular, Plus
- ColumbiaMidweight Stretch Base Layer Tights - Women'sTop Rated$55.00Underwear Weight:MidweightSize Type:Regular, Plus
- IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men'sTop Rated$105.00Underwear Weight:MidweightSize Type:Regular, Big
- Icebreaker260 Tech High-Rise Base Layer Leggings - Women'sTop Rated$125.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Men's$130.00Underwear Weight:LightweightSize Type:Regular, Big
- Kari TraaEdith Base Layer Pants - Women's$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Lettuce Edge Base Layer Bottoms - Women's$82.73Save 28%compared to  $115.00Members, use code OUTCOLD25 to save an extra 25% on this item, thru 11/3.Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolIntraknit Thermal Max Merino Base Layer Bottoms - Women's$100.73Save 25%compared to  $135.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Arc'teryxRho Boot Cut Base Layer Bottoms - Women's$72.73Save 19%compared to  $90.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- REI Co-opLightweight Base Layer Bottoms - Toddlers'Top Rated$19.95Underwear Weight:LightweightSize Type:Regular
- Helly HansenMerino Wool Base Layer Set - Kids'$75.73Save 36%compared to  $120.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Arc'teryxRho LT Base Layer Bottoms - Men's$79.73Save 20%compared to  $100.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Helly HansenLIFA Merino Midweight 2-In-1 Base Layer Pants - Women'sTop Rated$69.73Save 30%compared to  $100.00Underwear Weight:MidweightSize Type:Regular, PlusREI OUTLET
- Kari TraaRose High-Waist Base Layer Pants - Women's$79.73Save 27%compared to  $110.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaFryd Base Layer Pants - Women's$29.83 - $65.00Underwear Weight:MidweightSize Type:Regular
- Helly HansenLIFA Merino Midweight Graphic Base Layer Pants - Women's$79.73Save 27%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's$81.73Save 28%compared to  $115.00Underwear Weight:MidweightSize Type:Plus, RegularREI OUTLET
- Icebreaker200 Sonebula Leggings - Men'sTop Rated$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- PatagoniaCapilene Thermal Weight Long Underwear Bottoms - Women's$99.00Underwear Weight:HeavyweightSize Type:Regular
- REI Co-opMerino 185 Base Layer Bottoms - Men's Tall Sizes$79.95Underwear Weight:LightweightSize Type:Tall, Big
- CraftCore Dry Active Comfort Base Layer Pants - Men's$32.73Save 34%compared to  $49.95Underwear Weight:MidweightSize Type:RegularREI OUTLET
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