Nat Sherman IRG
The IRG line from Nat Sherman has 2 sizes listed, from 114 to 127 mm long and from a 42 to a 50 ring gauge.
Every size in the line
Sizes side by side
| Vitola | Length | Ring gauge | Strength |
|---|---|---|---|
| IRG Robusto | 114 mm | 50 | Medium |
| IRG Corona | 127 mm | 42 | Medium |