Simpson CarbonX Ultimate Underwear is made from double jersey interlock knit comprised of a patented blend of high-performance fibers. It is inherently flame resistant. It will not burn, melt, or ignite when subjected to direct flame.
- Designed to deliver the ultimate in base layer thermal protection
- TPP rating of 13 cal/cm2 and zero seconds after flame
- Lightweight, patented blend of high-performance fibers
- Double jersey interlock knit
- Color: Black
Simpson Apparel Size Chart
Available Sizes:
| Size | SKU |
| Small | 20601S |
| Medium | 20601M |
| Large | 20601L |
| XL | 20601X |
| 2XL | 20601Z |
