Korean size labels look familiar but run noticeably smaller, and the fit models differ, so converting by label alone leads to disappointment.
Tops
Korean S usually fits US XS-S, Korean M fits US S, Korean L fits US M. Free size typically fits up to a US M with an oversized silhouette.
Bottoms
Korean waist sizes are given in inches for jeans but in centimeters for many brands. A Korean 28 is roughly a US 27-28 with a slimmer cut through the thigh.
Shoes
Korean shoes use millimeters. US men's 9 is about 270 mm, US women's 7 is about 240 mm. Add 5 mm for wide feet.
Trust the measurement table
Every Korean product page includes a measurement chart in centimeters. Compare it against a garment you already own rather than converting labels.
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Start a buy-for-me order →Frequently asked
Do brands vary?
Considerably. Always check the per-item chart.
What about outerwear?
Sizing up one step is common for Korean outerwear if you want a US-standard fit.
Can I exchange sizes?
Only before international shipping, following the seller's domestic policy.