Size Guides

adidas Bottomsadidas Sports Bras & Topsadidas Trainersadidas X Stella McCartney Bottomsadidas X Stella McCartney Sports Bras & Topsadidas X Stella McCartney TrainersAlo Yoga BottomsAlo Yoga Sports Bras & TopsAPLBeyond YogaDharma BumsElectric & RoseFalkeFP MovementGirlfriend Collective BottomsGirlfriend Collective Sports Bras & TopsGoodmove BottomsGoodmove Sports BrasGoodmove TopsHOFFHoka One OneKoralLilybodMonrowNike BottomsNike SocksNike Sports Bras & TopsNike TrainersOrganic Basics BottomsOrganic Basics Sports Bras & TopsOn Men's ApparelOn Men's TrainersOn Women's ApparelOn Women's TrainersOnzieP.E NationPointe StudioSayeSpiritual GangsterStance SocksTeekiTerezThe UpsideUltracorUnder Armour ApparelUnder Armour TrainersVarley BottomsVarley Sports Bras & TopsVejaVuori BottomsVuori Sports Bras & TopsWolvenYear of OursYMO
adidas Bottomsadidas Sports Bras & Topsadidas Trainersadidas X Stella McCartney Bottomsadidas X Stella McCartney Sports Bras & Topsadidas X Stella McCartney TrainersAlo Yoga BottomsAlo Yoga Sports Bras & TopsAPLBeyond YogaDharma BumsElectric & RoseFalkeFP MovementGirlfriend Collective BottomsGirlfriend Collective Sports Bras & TopsGoodmove BottomsGoodmove Sports BrasGoodmove TopsHOFFHoka One OneKoralLilybodMonrowNike BottomsNike SocksNike Sports Bras & TopsNike TrainersOrganic Basics BottomsOrganic Basics Sports Bras & TopsOn Men's ApparelOn Men's TrainersOn Women's ApparelOn Women's TrainersOnzieP.E NationPointe StudioSayeSpiritual GangsterStance SocksTeekiTerezThe UpsideUltracorUnder Armour ApparelUnder Armour TrainersVarley BottomsVarley Sports Bras & TopsVejaVuori BottomsVuori Sports Bras & TopsWolvenYear of OursYMO

On Running Men's Apparel Size Guide

Shop On Running Men's Apparel

Size XS S M L XL
Chest (cm) 35-37" (90-93) 38-39" (96-99) 40-41" (102-106) 43-44" (108-111) 45-46" (114-118)
Waist (cm) 30-31" (77-80) 33-34" (83-86) 35-36" (89-92) 37-39" (95-98) 40-41" (101-105)
Hip (cm) 35-37" (90-93) 38-39" (96-99) 40-41" (102-106) 43-44" (108-111) 45-46" (114-117)

Need further assistance?

The Sports Edit size recommendation:

On Running's apparel are true to size, so we recommend going for your usual size.

Not sure which size to choose?

If you have any questions or need help deciding, that’s what we’re here for! Please contact our customer service team who would be happy to assist - email us [email protected] or call us on 0203 793 0964.