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 |
Apparel Sizing — Men's Training T-Shirts
Precision · Sweat Conqueror · Power Pulse · Endurance Elite · Flex · Intense
General sizing reference based on standard international men’s clothing sizes. If between sizes, size up for a relaxed fit or size down for a fitted feel.
| Size | UK | EU | US | Chest (cm) | Waist (cm) | Length (cm) |
|---|---|---|---|---|---|---|
| S | S | 44–46 | S | 109 | 101 | 69.5 |
| M | M | 48–50 | M | 113 | 105 | 71.5 |
| L | L | 52–54 | L | 117 | 109 | 73.5 |
| XL | XL | 56–58 | XL | 121 | 113 | 75.5 |
| 2XL | 2XL | 60–62 | 2XL | 125 | 117 | 77.5 |
| 3XL | 3XL | 64–66 | 3XL | 129 | 121 | 79.5 |
*Sizes are measured manually — a 1–2cm error is normal.
Apparel Sizing — Women's Seamless Tops
Elevate Seamless Long Sleeve · Seamless Long Sleeve
General sizing reference based on standard international women’s clothing sizes. If between sizes, size up for a more relaxed fit or size down for a compression fit.
| Size | UK | EU | US | Chest (cm) | Waist (cm) | Hip (cm) |
|---|---|---|---|---|---|---|
| S | 8–10 | 36–38 | 4–6 | 82–86 | 62–66 | 88–92 |
| M | 10–12 | 38–40 | 6–8 | 86–90 | 66–70 | 92–96 |
| L | 12–14 | 40–42 | 8–10 | 90–95 | 70–75 | 96–101 |
| XL | 14–16 | 42–44 | 10–12 | 95–100 | 75–80 | 101–106 |
| 2XL | 16–18 | 44–46 | 12–14 | 100–106 | 80–86 | 106–112 |
| 3XL | 18–20 | 46–48 | 14–16 | 106–112 | 86–92 | 112–118 |
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.