The Simpson STD.48 Signature Knit Nomex jacket offers superior fire protection. It meets and exceeds SFI 3.3/20 ratings. It is made from a lightweight and comfortable fabric. Each Simpson Signature Knit Nomex item has a subtle bit of stretch for increased freedom of movement.
- Lightweight and comfortable Nomex
- Contrasting piping
- Full arm gussets
- Built-in arm restraints
- SFI 3.3/20 rating with SFI tags
| Brand | Simpson |
| Part Numbers | 4802334 (Large); 4802434 (XL) |
| Product Line | Signature Knit |
| Size | Large and XL |
| SFI Rating | 3.2A/20 |
| Layers | 2 Layer |
| Piping | Yes |
| Piping Location | Shoulder |
| Piping Color | White |
| Logo | Yes |
| Logo Style | Simpson |
| Logo Location | Shoulder |
| Material | Nomex |
| Color | Black |
| Quantity | Each |
Simpson Racing Adult Suit Size Chart
| Size | Chest | Waist | Hip | Inseam | Neck | Height | Weight |
| S | 30-34 | 26-30 | 33-37 | 31 | 14.5 | 5’5″ to 5’7″ | 115-130 lbs |
| M | 34-38 | 30-34 | 37-41 | 32 | 15.5 | 5’7″ to 5’10” | 140-165 lbs |
| L | 38-42 | 34-38 | 41-45 | 33 | 16.5 | 5’10” to 6’2″ | 175-200 lbs |
| XL | 42-46 | 38-42 | 45-49 | 34 | 17.5 | 5’11” + | 210-225 lbs |
| 2XL | 46-50 | 42-46 | 49-53 | 35 | 18.5 | 5’11” + | 235-250 lbs |
