isotoner Womens Base Layer Set - Warm Underlayer Pants & Shirt, Performance Shirt & Leggings, Long Underwear Women (Grey, Medium) at Women's Clothing store
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UA Base 4.0 is built for extreme cold weather and lower activity. It uses a unique pattern that's designed to trap heat without adding bulk. Think
Women's UA Base 4.0 Leggings
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Your base layer is not meant to keep you warm
![](https://content.backcountry.com/images/items/900/SIC/SICZ2OD/OLINIG.jpg)
Women's Long Underwear & Base Layers
![](https://d1nymbkeomeoqg.cloudfront.net/photos/27/1/391609_26554_XL.jpg)
The 6 Best Base Layers for Women of 2024
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Isotoner Men's Brushed Top and Pants Base Layer Set, 2-Piece
![](https://i.ebayimg.com/images/g/AmQAAOSw~KJlIaw0/s-l1600.jpg)
Isotoner Women's MED Base Layer 2 PC Set Thermal Ultra Soft Black Long Johns
![](https://i.ebayimg.com/images/g/i3IAAOSwN1Nk-7Ja/s-l1600.jpg)
Isotoner Women's Size SM Long Sleeve Grey Thermal Undershirt
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Base Layers - Women
![](https://m.media-amazon.com/images/I/71UXJXNbEIL._AC_UY1000_.jpg)
isotoner Womens Base Layer Set - Warm Underlayer Pants & Shirt, Performance Shirt & Leggings, Long Underwear Women (Grey, Medium) at Women's Clothing store
Women's UA Base 4.0 Leggings
![](https://cdn.shopify.com/s/files/1/0116/1462/products/women-s-warm-base-layer-tops-women-s-warm-base-layer-tops-2_600x.jpg?v=1598834398)
Women's ORIGINAL™ Base Layer Bottoms
![](https://s3.us-east-1.amazonaws.com/images.gearjunkie.com/uploads/2023/10/DSC02227-copy.jpg)
The Best Base Layers for Women of 2024
![](https://m.media-amazon.com/images/I/518-ymBggYL._AC_SL1500_.jpg)
isotoner Womens Base Layer Set - Warm Underlayer Pants & Shirt, Performance Shirt & Leggings, Long Underwear Women (Grey, Medium) at Women's Clothing store