For customers switching from a fuller, traditional-cut suit. Recommendations are based on our experience fitting customers; build and preferred fit can affect the best size.
Harrell’s fit recommendations for customers moving from traditional-cut suits
| Traditional-cut size | Recommended Harrell’s size |
| 36R | 36R |
| 38R | 38R |
| 40R | 40R* |
| 42R | 42R — slim build; 44R — fuller build |
| 44R | 46R |
| 46R | 50R |
| 48R | 52R |
| 50R–52R | Contact us for a fit assessment before ordering. |
*For size 40 customers with a fuller seat or thighs, contact us to confirm your size.
These recommendations are for Regular lengths. Check both the jacket and trouser sizes shown in your selection. For Short or Long lengths, contact us before ordering.
Understanding the garment label
The size choices use UK/US jacket numbering. Your garment may also show its EU size; for example, UK 40 / EU 50 is the garment listed here as size 40. This label conversion is separate from the fit recommendations above.