| US Men Size | Foot Length (in) | Ball Girth (in) |
|---|---|---|
| 7 | 9.4–9.6 | 8.6–8.8 |
| 8 | 9.8–10.0 | 8.8–9.0 |
| 9 | 10.2–10.4 | 9.0–9.2 |
| 10 | 10.6–10.8 | 9.2–9.4 |
| 11 | 11.0–11.2 | 9.4–9.6 |
| 12 | 11.4–11.6 | 9.6–9.8 |
| US Women Size | Foot Length (in) | Ball Girth (in) |
|---|---|---|
| 6 | 8.7–8.9 | 7.9–8.1 |
| 7 | 9.1–9.3 | 8.1–8.3 |
| 8 | 9.5–9.7 | 8.3–8.5 |
| 9 | 9.9–10.1 | 8.5–8.7 |
| 10 | 10.3–10.5 | 8.7–8.9 |
| 11 | 10.7–10.9 | 8.9–9.1 |
* All measurements are in inches. Measure foot length while standing with weight on your feet.
* For hiking & climbing use, we recommend sizing up 0.5 size to accommodate thick socks and foot swelling.
* Actual fit may vary by shoe last, toe box shape and material rigidity.
This supportive insole adds cushioning and freshens up your boots, with an innovative probiotic technology that controls odor naturally.
Men's sizes: Small = 6.5-8, Medium = 8.5-10, Large = 10.5-12, X-Large = 12.5-14