Get lightweight long underwear that packs a heavyweight punch against the cold with Lightweight Base Layers from RefrigiWear®.
The Lightweight Base Layer Bottom can help feel 4°F to 8°F warmer, depending on your activity. The stretch jersey knit will flex to move with you while the brushed lining and flat seams keep you warm and comfortable while you work in the cold.
Build a foundation of warmth. Layer up with the Lightweight Base Layer Bottom and Lightweight Base Layer Top.