Size Guide | Spark R&D & Karakoram Bindings
Spark R&D Splitboard Bindings (Arc ST, Surge ST, Surge ST Pro)
Spark R&D uses unisex sizing based on boot length and bulk, not men's or women's specific sizing.
| Size | XS | S | M | L |
| US Men's Boot | <7 | 7–8.5 | 8.5–10.5 | 10.5+ |
| US Women's Boot | <8 | 8–9.5 | 9.5–11.5 | 11.5+ |
| EU | <39 | 39–41 | 41–43 | 43+ |
| Mondo (cm) | <24.5 | 24.5–26 | 26–27.5 | 27.5+ |
Karakoram Wayfinder Women's Splitboard Binding
| Size | S | M |
| US Women's Boot | 4.5–7 | 7.5–10.5 |
Larger boots? Karakoram's women's Wayfinder runs in S and M. Call Twelve on 03 9421 2293 and we'll match you to the right size.
Fit Tips
- Boot bulk matters as much as boot size. A bulky or stiff boot at a size boundary will usually fit better in the larger binding.
- Splitboard bindings need pucks (sold separately) to mount in ride mode.
- Between sizes? Call us on 03 9421 2293 or bring your boots in-store and we'll fit them.