
Size Chart
| UK Size | EU Size | Foot Length (MM) | Foot Length (Inch) |
|---|---|---|---|
| 2 | 34 | 205mm | 8.1" |
|
2.5 |
35 | 210mm | 8.3" |
|
3 |
36 | 215mm | 8.5" |
|
3.5 |
37 | 220mm | 8.7" |
|
4 |
38 | 225mm | 8.9" |
|
4.5 |
39 | 230mm | 9.1" |
|
5 |
40 | 235mm | 9.3" |
|
5.5 |
41 | 240mm | 9.4" |
|
6 |
42 | 245mm | 9.6" |
|
6.5 |
43 | 250mm | 9.8" |
|
7 |
44 | 255mm | 10.0" |
|
7.5 |
45 | 260mm | 10.2" |
|
8 |
46 | 265mm | 10.4" |
|
8.5 |
47 | 270mm | 10.6" |
|
9 |
48 | 275mm | 10.8" |
|
9.5 |
49 | 280mm | 11.0" |
|
10 |
50 | 285mm | 11.2" |
|
11 |
51 | 290mm | 11.4" |
|
12 |
52 | 300mm | 11.8" |
Size Recommendation
To ensure the best fit, we recommend measuring your current insoles and comparing them with the size chart above.
If you're unsure between two sizes, it's usually better to choose the smaller size for a more comfortable fit.
More videos
How Booststeps Pro Works
The technology is simple: carbon works like a spring.
✅ COMPRESS - When you step down, carbon absorbs the energy
✅ RELEASE - When you lift your foot, the energy is released
✅ PUSH - Every step gives you an extra forward boost
The result? Run faster, jump higher, get less tired.
Backed by Science. Built for Performance 🧪
Study investigated the acute effects of CFI (carbon fiber insoles) on sports performance, lower extremity muscular activation, and subjective comfort. The results showed that, compared to the benchmark insole, CFI significantly improved sports performance in terms of power generation and agility.
Read the full study Here.
IMPOROVE PERFORMANCES
RUN FASTER
JUMP HIGHER
LESS FATIGUE
IMPOROVE PERFORMANCES
RUN FASTER
JUMP HIGHER
LESS FATIGUE
IMPOROVE PERFORMANCES
RUN FASTER
JUMP HIGHER
LESS FATIGUE
IMPOROVE PERFORMANCES
RUN FASTER
JUMP HIGHER
LESS FATIGUE
IMPOROVE PERFORMANCES
RUN FASTER
JUMP HIGHER
LESS FATIGUE
IMPOROVE PERFORMANCES
RUN FASTER
JUMP HIGHER
LESS FATIGUE
IMPOROVE PERFORMANCES
RUN FASTER
JUMP HIGHER
LESS FATIGUE
IMPOROVE PERFORMANCES
RUN FASTER
JUMP HIGHER
LESS FATIGUE
IMPOROVE PERFORMANCES
RUN FASTER
JUMP HIGHER
LESS FATIGUE
IMPOROVE PERFORMANCES
RUN FASTER
JUMP HIGHER
LESS FATIGUE