HIRUN
HiFoam Supercritical TPU Integrated Super Midsole Wrap-around Heel Stabilization System Hi-wire Supercritical Upper Magic Carpet Supercritical Shape-Stabilizing Insole AGCS Non-slip and Wear-resistant Outsole
- 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.
Weight
US(M)7.5 : 8.29 oz (235 g)
Heel Stack
33 mm
Forefoot Stack
28.8 mm
Heel-Toe Offset
4.2 mm
HI-FIBER High Strength Fiber Upper
Crafted with premium HI-Thread Tech Upper, this shoe boasts exceptional toughness and tear resistance. Its streamlined, body-hugging fit combined with enhanced breathable design enables 360° air circulation to cool feet down and keep them dry all day long.
HiFoamTPU Integrally-Molded Foaming Midsole
Featuring HifoamTPU one-piece molding technology, the midsole is lighter, yet denser, more durable against fatigue, and better in resilience. It boosts energy return efficiency for superior shock absorption and rebound. The heel-wrapping TPU paired with arch-supporting TPU delivers dual stabilizing support and enhanced anti-torsion protection.
Magic Carpet Stability Insole (TPU Supercritical Foam)
Boasting an all-new board foaming technology, it delivers 80% energy rebound and cuts weight by 50% compared to E-TPU foaming. The stabilizing structure design secures feet, enhances wrap-around fit and provides superior cushioning to protect sports joints.
AGCS Wet Ground Anti Slip and Wear-Resistant Outsole
The All Ground Control System outsole is crafted from polyurethane, delivering enhanced grip, superior wet-surface slip resistance and outstanding wear resistance.
Define Your Speed, Run Freely with HIRUN
Whether you're powering through daily training, cruising on long-distance runs, or chasing a new personal best, HIRUN delivers lightweight comfort and responsive performance to keep every stride smooth, confident, and effortless.
More Than Speed, Defined by Detail
Highly breathable mesh keeps every run fresh and comfortable.
Engineered stability empowers every stride with confidence.
From Track to Life, Effortlessly
A secure, comfortable fit helps you chase new personal bests.Clean, versatile styling transitions seamlessly into everyday life.