New BalancevsGymshark, Size Comparison
Gymshark tends to run smaller than New Balance. If you wear a Medium at New Balance, you may need a Large at Gymshark. For a measurement-based recommendation, use the fit checker.
New Balance vs Gymshark sizing, quick answer
Gymshark runs about one size smaller than New Balance. If you wear a Medium at New Balance, you'll likely need a Large at Gymshark. For an exact recommendation, build a free fit profile.
- New Balance: fits true to size
- Gymshark: runs small
- If between sizes: size up at the brand that runs smaller, or use the fit checker below for a personalised recommendation.
Brand guide
Compare how New Balance and Gymshark usually fit, where cuts feel slimmer or roomier, and which categories are most predictable.
GENERAL BRAND GUIDANCE
This is a general brand-level sizing summary, not an exact product recommendation. For your specific size, paste a product link into the fit checker.
The Verdict
New Balance sizing compared to Gymshark: New Balance fits true to size while Gymshark runs small. Here is how the sizes translate.
Gymshark tends to run smaller than New Balance. If you wear a Medium at New Balance, you may need a Large at Gymshark. For a measurement-based recommendation, use the fit checker.
Category Match-up
Size Conversion Table
* Indicative only. For your personalised size at both brands,
Common Questions
Does New Balance run smaller than Gymshark?
Gymshark runs about one size smaller than New Balance. If you wear a Medium at New Balance, you'll likely need a Large at Gymshark. For an exact recommendation, build a free fit profile.
Should I size up or down at New Balance vs Gymshark?
Size up one at Gymshark compared to New Balance. Gymshark runs smaller, so if you wear a Medium at New Balance, try a Large at Gymshark, especially for fitted tops and tailored bottoms.
If I'm a Medium at New Balance, what size am I at Gymshark?
Since Gymshark runs smaller than New Balance, a Medium at New Balance is roughly equivalent to a Large at Gymshark. Use the ThisFits fit checker for a recommendation based on your measurements.
Does New Balance or Gymshark fit differently by category?
Yes, fit varies meaningfully by category. Activewear, Tops can each fit differently than the brand's overall tendency suggests. See the Category Match-up section below for per-category guidance.
Which brand is more accurate to its size chart, New Balance or Gymshark?
New Balance and Gymshark both publish official size charts, but real-world fit varies by fabric, cut and category. The ThisFits engine cross-references published charts with shopper fit reports across 197+ brands to predict your size in each.
What if I'm between sizes at New Balance and Gymshark?
If you're between sizes, Gymshark tends to fit closer to the body, so trying the larger size first usually means fewer returns. Always confirm each retailer's return policy before ordering.