UK sizing answer
Does Gymshark Run Small?
Forre is still collecting enough reviews to give a confident Gymshark sizing verdict.
Community fit data is growing. Based on brand sizing information and product specifications.
Fit notes
Built for a narrower hip-to-waist ratio than the UK average. Seamless ranges (Vital, Flex) have good four-way stretch and are the most forgiving. Structured ranges (Adapt, Training) have almost no give — size for your hips and expect excess at the waist.
Watch out for
Waistband rolling for pear shapes who size up for hip room. Hip and thigh pull in woven ranges for anyone with hips above 40". Not recommended for apple shapes in the Adapt range.
Product-level sizing
jackets
Training Woven Jacket
£55
No fit data yet
Based on brand data
leggings
Gymshark Vital Seamless Leggings
£45
No fit data yet
Based on brand data
leggings
Flex High Waisted Leggings
£50
No fit data yet
Based on brand data
shorts
Speed Shorts
£33
No fit data yet
Based on brand data
shorts
Gymshark Training Shorts
£35
No fit data yet
Based on brand data
shorts
Speed 2-in-1 Shorts
£24
No fit data yet
Based on brand data
sports bra
Gymshark Adapt Animal Seamless Sports Bra
£45
No fit data yet
Based on brand data
sports bra
Vital Seamless Sports Bra
£28
No fit data yet
Based on brand data
tops
Training Oversized Tee
£17
No fit data yet
Based on brand data
tops
Legacy Training Top
£28
No fit data yet
Based on brand data
Personal answer
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