Gymshark Size Guide — Does Gymshark Run Small?

Does Gymshark run small?

Yes — Gymshark runs consistently small compared to standard EU sizing. For most styles, size up by one full size. This is especially true for leggings, shorts and form-fitting tops where the compression fit amplifies the smaller cut.

• →Leggings and shorts: size up one. These run the smallest in the Gymshark range.
• →Sports bras and fitted tops: size up one for comfort and full coverage.
• →Oversized hoodies and joggers: your usual EU size works or even size down for a standard fit.
• →Men: also run small — size up one for fitted styles, true to size for oversized pieces.

Gymshark uses high-compression fabrics that are designed to hug the body. When in doubt, always go with the larger size — the stretch will accommodate minor differences.

How to measure yourself for Gymshark

Use a soft tape measure and take measurements in the morning when your body is at its most relaxed. Wear minimal clothing and keep the tape snug but not tight.

• →Bust: measure around the fullest part of your chest. Key for tops and sports bras.
• →Waist: measure around your natural waist, approximately 2–3 cm above the navel.
• →Hips: measure around the fullest part of your hips. Key for leggings and shorts.
• →For leggings: focus on hip measurement — this is the most critical for Gymshark fit.

Once you have your measurements, compare against the Gymshark size chart. If you fall between sizes — always choose the larger Gymshark size.

Gymshark sizing tips by garment

• →Gymshark leggings: Size up 1 — they run very small. This is the most common sizing mistake.
• →Gymshark sports bras: Size up 1 for comfort and full coverage during training.
• →Gymshark hoodies (oversized): True to size or size down for the intended oversized silhouette.
• →Gymshark shorts: Size up 1 — similar to leggings, the cut is very fitted.
• →Gymshark t-shirts: Size up 1 for fitted styles. True to size for relaxed-fit tees.

Gymshark vs Nike sizing: what's the difference?

Both Gymshark and Nike are popular activewear brands, but their sizing is not the same. Understanding how they differ will save you from returning the wrong order.

• →Gymshark vs Nike: Gymshark runs smaller than Nike. If you wear Nike EU 38, order Gymshark EU 40. Nike generally runs true to size or half a size small; Gymshark runs a full size small.
• →Gymshark vs Adidas: Adidas runs slightly large compared to standard EU, so the gap is even bigger. If you wear Adidas EU 38 comfortably, you may need Gymshark EU 42 for leggings.
• →Why the difference? Gymshark uses high-compression, four-way stretch fabrics cut intentionally close to the body. Nike and Adidas use more relaxed fits for versatile athletic use.
• →Consistent rule: whatever your Nike or Adidas size is, add one full EU size when ordering Gymshark fitted pieces.

The safest approach remains the same for all three brands: measure your bust, waist and hips and compare against each brand's specific size chart rather than relying on letter sizes alone.