Hoodies & Sweaters Sizing Guide for Oopbuy

Ordering hoodies and sweaters from overseas without a reliable sizing strategy is a recipe for disappointment. Asian sizing conventions differ significantly from Western standards, and fabric composition affects how an item will fit after washing. This guide will show you how to nail your hoodies and sweaters sizing every single time you shop on oopbuy.

The golden rule is: never order by your usual letter size. A "Large" from an Asian streetwear factory is often closer to a US Small or Medium. Instead, always work from the flat-lay measurement chart. Lay your favorite well-fitting hoodie on your bed, measure the chest width from armpit to armpit, the shoulder width from seam to seam, the sleeve length from shoulder to cuff, and the total length from collar to hem. Write these four numbers down. They are your personal baseline.

When you find an item you want, open the seller's size chart and compare each measurement to your baseline. For a relaxed, oversized fit, add 2 to 4 centimeters to each dimension. For a fitted, true-to-size look, match within 1 centimeter. For a cropped or boxy streetwear fit, prioritize chest width over length and aim for a chest measurement 6 to 8 centimeters larger than your baseline.

Pay close attention to fabric composition. 100% cotton will shrink 3% to 5% after the first warm wash. Cotton-polyester blends shrink less, usually 1% to 2%. If you plan to tumble dry, add an extra 2 centimeters to your length measurement as insurance. Fleece-lined hoodies often fit slightly smaller than French terry because the interior pile takes up space inside the garment.

Layering is another consideration. If you plan to wear the hoodie over a t-shirt, the baseline fit is fine. If you want to layer it over a thicker sweater, add 2 centimeters to the chest and shoulder measurements. For cropped styles meant to be worn over longline tees, the length matters less, but the hem width should be wide enough to drape cleanly over your base layer.

For a downloadable measurement tracker and seller-specific size accuracy ratings, check our main directory. For more sizing and fit guides, back to our homepage to browse our full resource library.