These men’s thermal leggings are a baselayer for work in cold conditions. They provide insulation and thermal protection next to the skin, helping you stay warm through long shifts.
The 140g wicking polyester draws moisture away from the body and lets it breathe out, so you stay drier when you are working hard. Low-profile seams keep the leggings smooth under your outer clothing.
Key features
- Insulating thermal fabric helps retain body heat in cold conditions
- High-wicking polyester moves sweat away from the skin to help keep you dry
- Breathable fabric lets moisture escape during active work
- Texpel™ wicking finish speeds up drying and helps stains wash out
- Low-profile seam construction reduces rubbing and lies flat under trousers
Materials and performance
100% wicking polyester, 140g.
Fit and sizing
Regular fit. See our Portwest Sizing Guide for detailed information.
Layering
Wear the leggings as the first layer under your work trousers. Their smooth, low-profile seams sit comfortably beneath outer garments, and the wicking fabric helps manage moisture while the layers above keep the warmth in.
Care
- Machine wash at 40°C on a gentle cycle
- Do not bleach
- Do not tumble dry
- Do not iron
- Do not dry clean
Add your logo
If you’d like to add your logo to the Portwest B131 Thermal Baselayer Leggings, please contact us.





























