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Wool Base Layers
(219 products)Products (219)
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- REI Co-opMerino 185 Base Layer Bottoms - Men's$39.83 - $55.89Save 30% - 50%compared to  $79.95Underwear Weight:LightweightSize Type:Regular, Big
- Sale Ends May 26SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's$86.19Save 25%compared to  $115.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Women'sTop Rated$79.93 - $86.19Save 25% - 30%compared to  $115.00Underwear Weight:MidweightSize Type:Regular, Plus
- Sale Ends May 26SmartwoolClassic Thermal Merino Crew Base Layer Top - Men'sTop Rated$86.19Save 25%compared to  $115.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's$62.93 - $67.49Save 25% - 30%compared to  $90.00Underwear Weight:LightweightSize Type:Regular, Plus
- Sale Ends May 26REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's$55.89Save 30%compared to  $79.95Underwear Weight:LightweightSize Type:Regular, Big
- tasc PerformanceElevation Merino T-Shirt - Women'sTop Rated$49.73Save 37%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- Sale Ends May 26REI Co-opMerino 185 Base Layer Bottoms - Women's$55.89Save 30%compared to  $79.95Underwear Weight:LightweightSize Type:Regular
- Sale Ends May 26REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's$55.89Save 30%compared to  $79.95Underwear Weight:LightweightSize Type:Regular
- REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Men's$49.83 - $73.39Save 30% - 52%compared to  $104.95Underwear Weight:HeavyweightSize Type:Regular, Big, Tall
- REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Women'sTop Rated$49.83 - $73.39Save 26% - 50%compared to  $99.95Underwear Weight:HeavyweightSize Type:Regular, Plus
- Sale Ends May 26SmartwoolClassic All-Season Merino T-Shirt - Men's$59.99Save 25%compared to  $80.00Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women'sTop Rated$83.93 - $89.99Save 25% - 30%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, Plus
- SmartwoolIntraknit Thermal Merino Base Layer Quarter-Zip Top - Men'sTop Rated$69.83 - $104.99Save 25% - 50%compared to  $140.00Underwear Weight:MidweightSize Type:Regular, Big
- Sale Ends May 26REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$62.89Save 30%compared to  $89.95Underwear Weight:LightweightSize Type:Regular, Big
- Sale Ends May 26SmartwoolIntraknit Active Base Layer Bottoms - Women's$82.49Save 25%compared to  $110.00Underwear Weight:LightweightSize Type:Regular
- REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Men's$49.83 - $99.95Underwear Weight:HeavyweightSize Type:Regular, Big
- SmartwoolClassic All-Season Merino T-Shirt - Women's$55.93 - $59.99Save 25% - 30%compared to  $80.00Underwear Weight:LightweightSize Type:Regular, Plus
- Arc'teryxIonia Merino Wool Base Layer Hoody - Men'sTop Rated$140.00Underwear Weight:MidweightSize Type:Regular, Big
- Arc'teryxLana Merino Wool Crew Base Layer Top - Women's$90.00Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's Plus SizesTop Rated$44.83 - $62.89Save 30% - 50%compared to  $89.95Underwear Weight:LightweightSize Type:Plus
- Arms of Andes160 Ultralight Alpaca Wool Long-Sleeve Base Layer Shirt - Men's$85.00Underwear Weight:UltralightweightSize Type:Regular, Big
- Arms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Men's$135.00Underwear Weight:LightweightSize Type:Regular, Big
- Arms of Andes300 Alpaca Wool Long-Sleeve Crew Base Layer Top - Men's$130.00Underwear Weight:LightweightSize Type:Regular, Big
- Arms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Women's$115.00 - $135.00Underwear Weight:LightweightSize Type:Regular
- Arms of Andes160 Ultralight Alpaca Wool Base Layer Leggings - Men's$85.00Underwear Weight:UltralightweightSize Type:Regular, Big
- REI Co-opMerino 185 Base Layer Bottoms - Women's Plus Sizes$39.83 - $55.89Save 30% - 50%compared to  $79.95Underwear Weight:LightweightSize Type:Plus
- Arms of Andes160 Ultralight Alpaca Wool Crewneck Base Layer T-Shirt - Men's$75.00Underwear Weight:UltralightweightSize Type:Regular
- Arc'teryxLana Merino Wool Base Layer Tank Top - Women's$90.00Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women'sTop Rated$44.83 - $62.89Save 30% - 50%compared to  $89.95Underwear Weight:LightweightSize Type:Regular
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