Sizely publishes practical guides on sizing, fit, and measuring. Our articles explain how to measure yourself, read a brand's size chart, and convert sizes between countries so you order the right size the first time.
Browse our latest guides on sizing and fit below. Have feedback, or a topic you want us to cover? Tell us.
Annie Button is a content creator with a passion for all things e-commerce. Her articles provide a treasure trove of tips and tricks for online sellers, derived from over 5 years of hands-on experience. Annie's expertise helps retailers navigate the online marketplace with greater ease and efficiency.
Sizing standards like ASTM, EN 13402, and ISO 8559 exist but are voluntary, so brands set their own fit and labels drift. Here is why sizes never match, and how to shop by measurement instead.
Annie Button
June 15, 2026
Measure a belt by running a tape from the buckle fold to the hole you fasten most. To buy new, add 1 to 2 inches to your pants waist.
Annie Button
June 13, 2026
