How do Musinsa clothing sizes compare to European sizes when shopping in Korea?

Korean sizes like 95 and 100 are chest measurements in centimetres, not arbitrary numbers — 95 corresponds roughly to a European 46 for men's outerwear, and 100 to about 48.

That is the rough conversion, but it is not the part that will stop the jacket being tight. Korean fits run narrower through the chest and shoulders than European equivalents at the same nominal size, so converting correctly and ordering your usual size still produces the result you experienced. For outerwear, many people size up one step from the conversion.

The reliable method is to ignore the size label and read the measurements. On a Musinsa product page, scroll past the description to the section showing the garment's actual dimensions in centimetres — typically total length, shoulder width, chest, and sleeve length, listed per size. The chest figure there is measured flat across the garment, so double it to compare against your own chest circumference, and allow several centimetres for how you want it to sit.

The fastest way to get this right is to measure a jacket you already own and like, laid flat, and compare those numbers directly against the table. That removes the conversion question entirely and is how most people who order from Musinsa regularly decide.

Two practical notes. Sizing varies between brands on the platform rather than being standardised, so check the table on each product rather than assuming your size carries across. And review photographs often include the reviewer's height and weight alongside the size they bought, which is more useful than the size chart for judging fit. Musinsa accepts exchanges and returns within a set period, with the return shipping cost falling on the buyer for a size change, so factor that in if you are between sizes.