Thermal Base Layer Bottoms
Find thermal base layer bottoms for the first layer of your outfit. Explore the selection of long underwear bottoms, and compare individual fit and sizing details to choose a pair that works under your outer layers.
Thermal Base Layer Bottoms
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FAQs
A base layer is the first layer of clothing worn next to the skin. Thermal base layer bottoms are the lower-body part of that layering system.
Yes, “long johns” is a common name for long thermal underwear, including base layer bottoms. The term can also refer to a two-piece set with a coordinating top.
Matching is a matter of personal preference. Choose a coordinated look or mix colors and patterns for a combination that feels like you.
Follow the garment’s care label for washing and drying instructions. Check those directions before using bleach, fabric softener or an iron.
Fold them in a dedicated drawer or group them with coordinating base layer tops. Keeping these pieces together makes them easy to find when you’re getting dressed.



