Draft data: Fit verdict is not fully verified yet. Do not treat as final advice. See how we score fit.

Does the New Balance 550 Run Big or Small?

Runs Narrow True to size length; half up if wide
Length may be fine — width is the issue. · confidence: medium

What size should you buy?

Interactive suggestion based on this model’s fit offset (+0 US). Always confirm with a retailer return policy.

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Width
Narrow leather toebox — limited width SKUs
Break-in
Leather break-in 5–10 wears

Summary

The 550 is true to size in length but frequently called narrow through the forefoot. Average/narrow feet take TTS; wide feet often go half up because dedicated wide widths are limited. Expect stiff leather until broken in.

US / UK / EU / cm chart

General reference chart (not brand-official). US_M is this model’s primary system. Interactive tool above adjusts for this model’s fit offset; the table is crawlable reference.

USUKEUcm
65.53924.0
6.5639.524.5
76.54025.0
7.5740.525.5
87.54126.0
8.584226.5
98.542.527.0
9.594327.5
109.54428.0
10.51044.528.5
1110.54529.0
11.51145.529.5
1211.54630.0
1312.547.531.0

Where to buy

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