OopBuy Sizing Guide: Converting Asian to US Measurements

Asian shoe sizing typically uses the JP (Japanese) or CN (Chinese) scale. A US men's 9 is roughly a JP 27 or CN 42.5–43. Width is rarely specified, so if you have wide feet, size up half a unit or look for sellers who note wide-fit options. Insole length is the most reliable measurement — measure a shoe you already own and compare.

Asian tops generally run one size smaller than US equivalents. A US medium usually maps to an Asian large. For an oversized streetwear fit, size up twice. Check the flat-lay chest and length measurements in QC photos rather than trusting the label alone. Shoulder width is especially important for jackets — a tight shoulder ruins the silhouette.

Waist measurements in centimeters are your best friend. A US 32-inch waist is about 81cm. Asian pants may list waist by centimeter rather than size label. Inseam and rise vary more than waist, so always ask for both if they are not in the row. For shorts, outseam matters more than inseam for visual length.

Belts should be ordered by the measurement from the buckle to your preferred hole, not your pant size. Caps are usually one-size with adjustable straps — check for XL or deep-fit labels if you have a large head. Beanies are one-size and stretchy. Bags do not need sizing but check dimensions against what you plan to carry.