Size Guide — Castiron Lift & Castiron Grip
Size Guide
Find your fit. First time, every time.
How to Measure
- Place your foot flat on a piece of paper
- Mark the heel and the tip of your longest toe
- Measure the distance in centimetres
- Match to the chart below
Measure both feet. Use the larger measurement.
Women’s Sizing — EU 35–44
Castiron Lift · Castiron Grip SWIFT · PR23 · N23
| CM | US Women | UK Women | EU Size |
|---|---|---|---|
| 21.5 | US 5.5 Women | UK 3 | EU 35 |
| 22.0 | US 6.5 Women | UK 4 | EU 36 |
| 22.5 | US 7.5 Women | UK 4.5 | EU 37 |
| 23.0 | US 8.5 Women | UK 5.5 | EU 38 |
| 24.0 | US 9.5 Women | UK 6.5 | EU 39 |
| 24.5 | US 10.5 Women | UK 7 | EU 40 |
| 25.0 | US 11 Women | UK 8 | EU 41 |
| 25.5 | US 11.5 Women | UK 8.5 | EU 42 |
| 26.5 | US 12.5 Women | UK 9.5 | EU 43 |
| 27.0 | US 13.5 Women | UK 10 | EU 44 |
Men’s Sizing — EU 35–44
Castiron Lift · Castiron Grip SWIFT · PR23 · N23
| CM | US Men | UK Men | EU Size |
|---|---|---|---|
| 21.5 | US 4 Men | UK 3.5 | EU 35 |
| 22.0 | US 5 Men | UK 4.5 | EU 36 |
| 22.5 | US 6 Men | UK 5.5 | EU 37 |
| 23.0 | US 7 Men | UK 6 | EU 38 |
| 24.0 | US 8 Men | UK 7 | EU 39 |
| 24.5 | US 9 Men | UK 8 | EU 40 |
| 25.0 | US 10 Men | UK 9 | EU 41 |
| 25.5 | US 11 Men | UK 10 | EU 42 |
| 26.5 | US 12 Men | UK 11 | EU 43 |
| 27.0 | US 13 Men | UK 12 | EU 44 |
Sizing Notes
Between sizes? Size up for comfort. Size down for performance fit.
Weightlifting shoes (Castiron Lift): Run true to size. Order your normal EU size.
Climbing shoes (Castiron Grip): Run slightly small. Order your normal EU size for a comfortable fit — go down 0.5 EU once you know your foot and want precision.
Quick Reference
- Foot is 24cm → Women’s US 9.5 / UK 6.5 · Men’s US 8 / UK 7 · EU 39
- Foot is 26.5cm → Women’s US 12.5 / UK 9.5 · Men’s US 12 / UK 11 · EU 43
- Wear UK 9 Men in everyday shoes → EU 43 · Castiron size EU 43
Looking for Kids Sizing?
Still unsure? Email us at support@castiron-lift.com — we’ll sort it.