The Complete ASICS Size Guide
ASICS, renowned worldwide for their performance running and training shoes, combines innovative technology with precision fit. Getting the right size is crucial for both comfort and optimal performance.
This comprehensive guide will help you find your perfect ASICS fit.
ASICS Size Chart
| US Men's | US Women's | EU Size | CM |
|---|---|---|---|
| 4 | 5.5 | 37 | 23 |
| 4.5 | 6 | 37.5 | 23.5 |
| 5 | 6.5 | 38 | 24 |
| 5.5 | 7 | 38.5 | 24.5 |
| 6 | 7.5 | 39 | 25 |
| 6.5 | 8 | 39.5 | 25.25 |
| 7 | 8.5 | 40 | 25.75 |
| 7.5 | 9 | 40.5 | 26 |
| 8 | 9.5 | 41.5 | 26.5 |
| 8.5 | 10 | 42 | 27 |
| 9 | 10.5 | 42.5 | 27.5 |
| 9.5 | 11 | 43.5 | 28 |
| 10 | 11.5 | 44 | 28.25 |
| 10.5 | 12 | 44.5 | 28.5 |
| 11 | 12.5 | 45 | 28.5 |
| 11.5 | 13 | 46 | 29 |
| 12 | 13.5 | 46.5 | 29.5 |
| 12.5 | 14 | 47 | 30 |
| 13 | 14.5 | 48 | 30.5 |
| 14 | 15.5 | 49 | 31 |
| 15 | 16.5 | 50.5 | 32 |
How Do ASICS Fit?
ASICS running and training shoes typically fit true to size, with a precisely engineered fit designed for performance. The shoes feature a secure midfoot with adequate toe room, ensuring stability during dynamic movements.
Your ASICS should provide a secure fit in the heel and midfoot, with enough room in the toe box for natural toe spread during running movements.
Key Features Affecting ASICS Fit
- GEL™ Technology: Cushioning system designed for shock absorption without compromising fit
- AHAR® Outsole: Durable rubber that maintains consistent ground feel
- FlyteFoam™: Lightweight midsole technology that maintains shape over time
- Engineered Mesh: Breathable upper that adapts to foot shape while maintaining support
How to Measure Your Foot
For the most accurate size selection:
- Measure Late Day: Feet naturally swell throughout the day, so measure in the afternoon
- Standing Position: Measure while standing to account for foot spread under weight
- Both Feet: Measure both feet and use the larger measurement
- Running Socks: Measure while wearing your preferred running socks
ASICS Size Calculator
Expert Tips for ASICS Sizing
- Choose your true size - ASICS are engineered for precise fit
- Consider your running gait and pronation when selecting specific models
- The toe box should allow natural toe spread during running motion
- Technical running socks can affect fit - measure with your preferred sock type
- Different ASICS series (GT, KAYANO, NIMBUS) maintain consistent sizing
- Wide and narrow width options are available in most popular models
Different ASICS Series
All ASICS running shoes follow consistent sizing across their range:
- GEL-KAYANO: Premium stability shoes with consistent fit
-
GEL-QUANTUM: Neutral cushioning with standard sizing
- GEL-NYC: Urban comfort with true-to-size fit
- GT Series: Structured support with true-to-size fit
- Racing Models: May feel snugger for performance fit
Break-In Period
ASICS running shoes typically require minimal break-in:
- The engineered mesh upper adapts quickly to your foot shape
- GEL™ cushioning maintains consistent feel from first wear
- Start with shorter runs to allow natural adaptation
- Most models feel race-ready after 20-30 kilometers
Conclusion
ASICS running shoes offer consistent and reliable sizing across their range. Using our size chart, calculator, and fitting tips, you can confidently select the right size for your training needs.
Remember that while these guidelines work for most runners, personal preference and running style play a role in finding your perfect fit.
Note: This size guide serves as a general reference. Individual fit may vary slightly based on personal preference and foot shape. For the most accurate sizing, we recommend trying on ASICS in person when possible.