CPX
Weight US (M) 8 : ≈ 47 oz (155 g)
Based on the core requirement of sprinting with the forefoot kicking off the ground, the entire palm is scientifically laid out with carbon fiber materials. The exposed carbon fiber structure of the forefoot is widened, ensuring uniform and efficient energy transmission. Every force application is precisely supported, and the rapid rebound feedback is like a powerful booster, making the running process smooth and fluid, and helping you seize the speed advantage in an instant
- Find your size in the chart below.
- Scroll horizontally to see more sizes.
| US - Men's | 2.5 | 3.5 | 4.5 | 5.5 | 6 | 6.5 | 7.5 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| US - Women's | 4.5 | 5.5 | 6.5 | 7.5 | 8 | 8.5 | 9.5 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| EU | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 |
| CM | 22 | 22.5 | 23 | 24 | 24.5 | 25 | 25.5 | 26 | 27 | 27.5 | 28 | 29 | 29.5 | 30 |
| UK | 2 | 2.5 | 3.5 | 4.5 | 5.5 | 6 | 7 | 7.5 | 8.5 | 9 | 10 | 11 | 12 | 13 |
Size Measuring Guide
A perfect fit for your ultra-marathon running shoes is important for comfort and performance. Follow these tips to measure your foot size at home:
General Tips:
- Measure your feet at the end of the day as they're at their largest due to swelling.
- In between sizes? One foot is bigger than the other? Take the larger size.
- It's best to measure every year. Your size could change over time.
What You'll Need:
- A piece of paper larger than your foot,
- A pen or pencil,
- A ruler or measuring tape,
- Socks of the thickness you'll wear with the shoes.
Steps:
- Stand on the paper in the socks you'll wear with the shoes.
- Use the pen or pencil to mark the end of your longest toe and the back of your heel. It's important to measure both feet as their size can vary.
- Match your measurements to our size chart to find the best fit. If you're between sizes, we suggest choosing the larger size for better comfort.
High-strength Hi-FIBER woven upper
It is woven with Hi-FIBER. Through special weaving, breathable small holes are generated, making it more transparent, tougher and more durable. It has an internal support reinforcement structure and a seamless fit. Paired with an integrated tongue, it creates a technologically transparent upper.
Widen the carbon fiber plate with hard reinforcing ribs
According to the requirements of sprinting and forefoot pushing off the ground, the entire palm carbon fiber material is scientifically laid out. The forefoot is widened to expose the carbon fiber structure, ensuring uniform energy transmission and force application. The rebound feedback is more rapid, making the running more smooth and allowing for a fully explosive sprint.
HifoamMax supercritical physical foaming
It adopts high-performance small hair and large blank film physical supercritical foaming material, and undergoes secondary pressing to reduce the weight of the midsole. It has excellent shock absorption and resilience, improving energy feedback efficiency and super rebound. Combined with the front palm carbon plate widening structure, it provides super power for sprinting acceleration and sprinting.The energy rebounds by 90%
H-PEBAX crystal transparent nylon elastic outsole
The crystal transparent nylon elastomer material is formed into a uniform special structure through precise injection molding process, featuring better energy feedback efficiency and shorter rebound time, providing continuous energy supply for the feet. The 6 pins are scientifically distributed, combined with corrugated triangular crystal columns, enhancing the grip effect and stability.