Asics Shoe Sizing Guide

Last Updated on May 27, 2025 by Andy Walker

Asics is a trusted name in the world of athletic footwear, especially popular among runners, tennis players, and cross-trainers for their stability, cushioning, and performance-focused design. But when it comes to sizing, Asics can differ slightly from other athletic brands.

This guide walks you through how Asics shoes fit, how to measure your feet, and what sizing to choose for different Asics styles.

See men’s sizes and women’s sizes.

See also: Shoe calculators

How Asics Shoes Fit

Most Asics shoes run true to size in length, but they often feature a snug, performance-focused fit—especially in the toe box and midfoot. That tight fit helps enhance responsiveness and support during intense activities but may require going up half a size for some wearers.

Key fit considerations:

• Performance fit: Asics shoes hug the midfoot and heel for stability.
• Toe box: Generally more narrow than brands like New Balance or Brooks.
• True length: The sizing is consistent with standard U.S. running shoe lengths.
• Width options: Many Asics models are available in narrow, standard, wide, and extra-wide sizes.

Sizing Tips by Footwear Type

Asics designs footwear for specific activities. Each category may fit a bit differently:

• Running shoes: True to size, but go up half a size if you’re between sizes or wear thick socks. The Gel-Nimbus and Gel-Kayano series offer roomier toe boxes than earlier models.
• Tennis shoes: A snug fit for lateral stability—consider sizing up if you have wider feet or toe discomfort.
• Training shoes (e.g., Met-Conviction, Gel-Quantum): Designed for lockdown fit and stability. Stick with your true size unless your feet swell during training.
• Walking shoes: Typically more generous in fit—true to size or half size down if you prefer a snug heel hold.

Measuring Your Feet at Home

Use these steps to ensure you’re getting an accurate fit before choosing your Asics shoe size:

1. Place a piece of paper on the floor against a wall.
2. Stand barefoot with your heel against the wall and mark the longest part of your foot.
3. Measure the length from the wall to your mark in inches or centimeters.
4. Repeat for both feet and use the larger measurement.
5. Compare with the sizing chart below.

You can also find printable Asics foot measurement charts online or use foot measuring tools at many sporting goods stores.

Asics Women’s Shoe Size Chart

Here is the standard women’s sizing chart for Asics shoes. As always, consider sizing up if your feet are wider or you prefer a looser fit.

Asics Men’s Shoe Size Chart

Here’s how men’s sizes convert across regions and measurements. Asics men’s shoes run true to size with a secure fit.

Asics Sizing FAQ