Size Guide
3DM Lifestyle shoes are sized to standard US dress shoe sizing. The guidance below will help you find the right fit before ordering.
Sizing notes
- 3DM shoes are sized to standard UK/US dress shoe sizing and generally fit true to size
- If you are between sizes, we recommend sizing down — a slightly snugger fit is preferable as the leather will mould to your foot over the first few wears
- Do not order your trainer or sneaker size — dress shoes fit differently and are typically a half to full size smaller than athletic footwear
- Wide fit is available across all styles at an additional cost of $20–40 — contact us before ordering for wide fit advice
- Half sizes are available at an additional cost of $20–40
- For unusual foot shapes or persistent fit issues, remote custom fitting is available from $500 with a trial pair and 8–12 week turnaround
- If you are unsure, email the 3DM team before ordering — we are happy to advise on the right size and last for your foot
Size conversion chart
| 3DM Size | US Size | UK Size | EU Size | Foot length (cm) | Foot length (inches) |
| 7 | 7 – 7.5 | 6 – 6.5 | 40 – 40.5 | 24.5 – 25.0 | 9⅝ – 9⅞ |
| 8 | 8 – 8.5 | 7 – 7.5 | 41 – 41.5 | 25.5 – 26.0 | 10 – 10¼ |
| 9 | 9 – 9.5 | 8 – 8.5 | 42 – 42.5 | 26.5 – 27.0 | 10⅜ – 10⅝ |
| 10 | 10 – 10.5 | 9 – 9.5 | 43 – 44 | 27.0 – 27.5 | 10⅝ – 10⅞ |
| 11 | 11 – 11.5 | 10 – 10.5 | 44 – 45 | 28.0 – 28.5 | 11 – 11¼ |
| 12 | 12 – 12.5 | 11 – 11.5 | 45 – 46 | 29.0 – 29.5 | 11⅜ – 11⅝ |
| 13 | 13 – 13.5 | 12 – 12.5 | 46 – 47 | 29.5 – 30.0 | 11⅝ – 11⅞ |
Not sure of your size? Follow our step-by-step Foot Measurement Guide to measure your foot at home. For sizing questions or wide fit enquiries, email the 3DM team directly.