How Do You Size Up?

Use our easy TRUE FIT tool and find your perfect fit before you add to cart.

1

Click the TRUE FIT icon
(What's my size?)

2

Tell TRUE FIT about your current
brands and sizes.

3

Check out your Altra sizing info
and order your perfect fit.

Finding the Right Fit With TrueFit™

Not sure what size Altra shoe to get? That’s where TrueFit™ comes in. This smart sizing tool analyzes your past shoe sizes, activity types and foot shape to serve up a personalized Altra fit. No guessing required.

Whether you’re wondering if Altra shoes run true to size or how wide our FootShape™ toe box really feels, TrueFit™ helps you purchase with confidence. Just a few quick questions and you’re ready to go.

Looking for a quick reference? Our full Altra size charts have every size conversion across men’s, women’s and EU/US metrics.

Altra Fit Finder: How It Works

You’ll find TrueFit™ on every product page. Just click “Find My Size,” enter a few details about your usual brands and fit, and get your Altra running shoe size in seconds.

This Altra Fit Finder is a perfect partner to our Shoe Finder Quiz, which also helps you choose the right model for your unique stride. Use both tools to find the perfect shoe for your run style and foot shape.

Do Altra Shoes Run Small?

Most Altra shoes run true to size. That said, certain models may feel different depending on your usual brand.

We recommend combining TrueFit™ insights with our FootShape guide to get a complete picture of how Altra shoes should fit. It’s worth getting it right.