La Sportiva Katana Lace (last season) sizing
Size down about one size from your street shoe
For a snug all-round fit, a street UK 9 (EU 43) is a UK 8 (EU 42) in the Katana Lace (last season). Go half a size smaller for hard bouldering, or bigger for long days. It's a starting point: feet differ, so try them on if you can.
Sizes the same as the La Sportiva Katana Lace.
Your size in the Katana Lace (last season)
Your street shoe size
Aggressive
Tight, hard bouldering
UK7½EU 41
Recommended
Snug all-rounder
UK8EU 42
Relaxed
Long sessions
UK8½EU 42½
Comfort
Beginners, multi-pitch
UK9EU 43
La Sportiva Katana Lace (last season) size chart
Your street size, then the size to get for each fit. From La Sportiva's size chart and how this model runs.
| Street | Aggressive | Recommended | Relaxed | Comfort |
|---|---|---|---|---|
| UK 4EU 37 | – | UK 3EU 35½ | UK 3½EU 36 | UK 4EU 37 |
| UK 4½EU 37½ | UK 3EU 35½ | UK 3½EU 36 | UK 4EU 37 | UK 4½EU 37½ |
| UK 5EU 38 | UK 3½EU 36 | UK 4EU 37 | UK 4½EU 37½ | UK 5EU 38 |
| UK 5½EU 38½ | UK 4EU 37 | UK 4½EU 37½ | UK 5EU 38 | UK 5½EU 38½ |
| UK 6EU 39½ | UK 4½EU 37½ | UK 5EU 38 | UK 5½EU 38½ | UK 6EU 39 |
| UK 6½EU 40 | UK 5EU 38 | UK 5½EU 38½ | UK 6EU 39 | UK 6½EU 39½ |
| UK 7EU 40½ | UK 5½EU 38½ | UK 6EU 39 | UK 6½EU 39½ | UK 7EU 40½ |
| UK 7½EU 41½ | UK 6EU 39 | UK 6½EU 39½ | UK 7EU 40½ | UK 7½EU 41 |
| UK 8EU 42 | UK 6½EU 39½ | UK 7EU 40½ | UK 7½EU 41 | UK 8EU 42 |
| UK 8½EU 42½ | UK 7EU 40½ | UK 7½EU 41 | UK 8EU 42 | UK 8½EU 42½ |
| UK 9EU 43 | UK 7½EU 41 | UK 8EU 42 | UK 8½EU 42½ | UK 9EU 43 |
| UK 9½EU 44 | UK 8EU 42 | UK 8½EU 42½ | UK 9EU 43 | UK 9½EU 43½ |
| UK 10EU 44½ | UK 8½EU 42½ | UK 9EU 43 | UK 9½EU 43½ | – |
| UK 10½EU 45 | UK 9EU 43 | UK 9½EU 43½ | – | – |
| UK 11EU 45½ | UK 9½EU 43½ | – | – | – |
– means past the end of the La Sportiva size chart we have.
More La Sportiva shoes
La Sportiva sizing →Estimates. Fit depends on foot shape and preference.