Under Armour

UA Sonic

Black

Our tool compares official Under Armour size charts to find your perfect size. No measuring needed.

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US Male 8/9.5 🇺🇸 US Male 9/10.5 🇺🇸 US Male 9.5/11 🇺🇸 US Male 10/11.5 🇺🇸 US Male 10.5/12 🇺🇸 US Male 11/12.5 🇺🇸 US Male 11.5/13 🇺🇸 US Male 12/13.5 🇺🇸 US Male 13/14.5 🇺🇸 US Male 14/15.5 🇺🇸
The Under Armour UA Sonic runs true to size. Order your normal Under Armour size for the best fit.
Foot Length EU US Male
0 - 355 mm 3 8½
355 - 360 mm 3.5 8¹³/₁₆
360 - 365 mm 4 8¹⁵/₁₆
365 - 375 mm 4.5 9¹/₁₆
375 - 380 mm 5 9¼
380 - 385 mm 5.5 9⁷⁄₁₆
385 - 390 mm 6 9½
390 - 400 mm 6 9¹¹/₁₆
400 - 405 mm 6.5 9¾
405 - 410 mm 7 9¹⁵/₁₆
410 - 420 mm 7.5 10¹/₁₆
420 - 425 mm 8 10¼
425 - 430 mm 8.5 10⁷⁄₁₆
430 - 440 mm 9 10⁹⁄₁₆
440 - 445 mm 9.5 10¾
445 - 450 mm 10 10¹⁵⁄₁₆
450 - 455 mm 10.5 11¹⁄₁₆
455 - 460 mm 11 11¼
460 - 470 mm 11.5 11½
470 - 475 mm 12 11¹¹⁄₁₆
475 - 480 mm 12.5 11¾
480 - 485 mm 13 12
485 - 490 mm 13.5 12³⁄₁₆
490 - 495 mm 14 12¼
Frequently Asked Questions
The Under Armour UA Sonic runs true to size. Order your normal size for the best fit.
Your Under Armour UA Sonic size depends on your foot length and the shoes you currently wear. Use our size finder tool to get a personalized recommendation based on shoes you already own. Alternatively, measure your foot length in cm and use the size chart above to find your Under Armour size.
Yes, the Under Armour UA Sonic runs true to size compared to standard Under Armour sizing. Order your normal size.
Use the size chart above to convert between EU, US and UK sizes for Under Armour UA Sonic. Each size shows the corresponding foot length in mm so you can find your perfect fit.

Last updated: 2026-02-08 21:22:30