Sertano belts are sized by waist, not by total length. Pick the size closest to your trouser waist; the leather will give a quarter inch in the first month.
| Belt length | Waist (A) | Total length (B) |
| 37" | 29–31" | 37" |
| 39" | 31–33" | 39" |
| 41" | 33–35" | 41" |
| 43" | 35–37" | 43" |
| 45" | 37–39" | 45" |
| 47" | 39–41" | 47" |
| 49" | 41–43" | 49" |
| 51" | 43–45" | 51" |
§ How to measure
Lay a belt you wear flat. Measure from the buckle's tongue to the hole you use most. That number, in inches, is your size. If you don't have a belt: measure your trouser waist where you wear your belt, not at the natural waist.
Capacity is approximate; the leather softens and stretches over the first month so each bag carries 5–10% more once broken in.
| Bag | Type | H × W × D | Capacity |
| The Corso | Backpack | 16" × 11" × 5" | 18 L |
| The Trade | Work Pack | 17" × 12" × 6" | 22 L |
| The Traveler | Weekender | 20" × 11" × 10" | 44 L |