HIWINGS MAX
According to the movement requirements of the forefoot and forefoot, carbon fiber materials are laid in multiple layers and directions, and a double-arched carbon fiber structure is set up. Compared with the traditional shore-shaped carbon plate, it provides double landing rebound force and thrust, double acceleration energy rebound, and each step is a catapult start
- Find your size in the chart below.
- Scroll horizontally to see more sizes.
| US - Women's | 2.5 | 3.5 | 4.5 | 5.5 | 6 | 6.5 | 7.5 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| US - Men'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.
Weight
US(M)7.5 : 7.48 oz (212 g)
Heel Stack
37 mm
Forefoot Stack
33 mm
Heel-Toe Offset
4 mm
HI-FIBER High Strength Fiber Upper
Featuring the HIRACER HI-Thread upper with a density lower than human hair strands, it forms breathable micro-holes via specialized weaving for enhanced ventilation, toughness, and durability. A built-in rhombus support reinforcement structure ensures a seamless, snug fit. Combined with an integrated flywire tongue, it creates a technologically advanced, highly breathable shoe upper.
Full-Length Dual-Arch Propulsive Carbon Plate
Carbon fiber material is arranged in multiple layers and directions according to the motion demands of the forefoot and heel, with a dual-arch carbon fiber structure designed. Compared with traditional shovel-shaped carbon plates, it delivers dual landing resilience and propulsion, doubles the acceleration of energy rebound, and turns every step into a catapult-like launch.
HiFoam∞ H-PEBAX Supercritical Foaming Midsole
The nylon elastomer H-PEBAX material undergoes a supercritical physical foaming process, which reduces midsole weight while delivering enhanced shock absorption and resilience. It boosts energy return efficiency, shortens rebound time, and pairs with a dual-arch carbon plate to provide sustained energy support for marathons.
AGCS Wet Ground Anti Slip and Wear-Resistant Outsole
The outsole of the All Ground Control System is made of polyurethane material, delivering superior slip resistance on wet surfaces and excellent wear resistance.