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Polyester Base Layers
(116 products)Products (116)
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- KUHLReactiv Lite Grid Long-Sleeve Crew Base Layer Top - Women'sNew arrival$109.00Underwear Weight:LightweightSize Type:Regular
- KUHLReactiv Lite Grid Base Layer Bottoms - Women'sNew arrival$99.00Underwear Weight:LightweightSize Type:Regular
- KUHLReactiv Lite Grid Base Layer Bottoms - Men's$99.00Underwear Weight:LightweightSize Type:Regular, Big
- KUHLReactiv Lite Grid Quarter-Zip Base Layer Top - Women'sNew arrival$119.00Underwear Weight:LightweightSize Type:Regular
- Terramar2.0 Cloud Nine Midweight Performance Thermal Turtleneck - Women's$32.73Save 31%compared to  $48.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Free CountryMicrotech Heat Base Layer Bottoms - Men's$31.73Save 29%compared to  $45.00Underwear Weight:LightweightSize Type:BigREI OUTLET
- Helly HansenOdin Power Stretch Half-Zip Base Layer Top - Women's$88.73Save 40%compared to  $150.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SeirusHeatwave Body Mapped Full-Length Base Layer Bottoms - Women's$59.83Save 50%compared to  $119.95Underwear Weight:MidweightSize Type:Regular
- Free CountryMicrotech Heat Base Layer Top - Men's$28.73Save 36%compared to  $45.00Underwear Weight:LightweightSize Type:BigREI OUTLET
- Helly HansenLifa Active Base Layer Bottoms - Women's$39.73Save 27%compared to  $55.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- SeirusHeatwave Body Mapped Quarter-Zip Long-Sleeve Base Layer Top - Women's$69.83Save 50%compared to  $140.00Underwear Weight:MidweightSize Type:Regular
- Helly HansenHH Lifa Active Crew Base Layer Top - Women's$39.73Save 33%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Helly HansenLifa Active Graphic Crew Base Layer Top - Women's$48.73Save 25%compared to  $65.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- The North FaceSummit Series Pro 120 Crew Base Layer Top - Men'sNew arrival$100.00Underwear Weight:UltralightweightSize Type:Regular, Big
- PatagoniaCapilene Midweight Base Layer Bottoms - Kids'$26.93Save 30%compared to  $39.00Underwear Weight:MidweightSize Type:Regular
- Kari TraaFryd Base Layer Top - Women's$41.93Save 30%compared to  $60.00Underwear Weight:MidweightSize Type:Regular
- Kari TraaFryd Base Layer Pants - Women's$41.93 - $60.00Underwear Weight:MidweightSize Type:Regular
- Kari TraaFryd Base Layer Pants - Women's$42.73Save 22% - 28%compared to  $55.00 - $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaLilja Long-Sleeve Base Layer Top - Women's$49.73Save 24%compared to  $66.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaLune Long-Sleeve Base Layer Top - Women's$41.73Save 35%compared to  $65.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- PatagoniaCapilene Midweight Base Layer Bottoms - Infants'$21.73Save 25%compared to  $29.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaFryd Base Layer Pants - Women's$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaFierce Base Layer Pants - Women's$46.73Save 29%compared to  $66.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaLilja Base Layer Pants - Women's$49.73Save 24%compared to  $66.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaLune Base Layer Pants - Women's$48.73Save 25%compared to  $65.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Helly HansenHH LIFA ACTIVE Base Layer Set - Kids'$54.73Save 31%compared to  $80.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
91–116 of 116 products
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