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Step-by-step guides to measuring and sizing, so you and your buyers land on the right size.
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.
Read postThe eye size is the most important number for fit. Read the three numbers stamped on the arm, or confirm them with a millimeter ruler in about two minutes.
Read postA guide to measuring jackets and blazers flat for online listings: nine flat measurements in inches and centimeters, a size-tag table cross-checked against ASTM D6240 and ISO 8559-1, fit notes, common mistakes, and FAQs.
Read postA plain guide to measuring a dress shirt the right way, reading the neck and sleeve numbers on the tag, and knowing which measurement controls which part of the fit.
Read postMeasure 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.
Read postMeasure a bikini in five laid-flat readings: cup length, cup width and band on the top, waist width and front-to-back rise on the bottom. List the relaxed flat numbers, not body size, so shoppers compare against the garment.
Read postA hands-on guide to measuring a bodysuit flat, with the six points that matter, measured flat ranges by size, a thong vs full-cut leg diagram, and a fit-notes FAQ.
Read postA guide to measuring a dress flat, point by point, with a worked example, an inline flat-to-body conversion calculator, and ASTM-aligned definitions. Reviewed June 2026.
Read postMeasure a hat with three numbers, the inside circumference that sets the size plus crown height and brim width, with a circumference-to-size chart and step-by-step instructions.
Read postA flat-measurement guide to a polo shirt's chest, shoulder, sleeve, length, waist and hem in inches and centimeters, with fabric, fit and common-mistake notes.
Read postA step-by-step guide to measuring a skirt flat: waist, hip, length, and hem sweep, plus which numbers to double and the most common listing mistakes.
Read postA step-by-step guide to measuring a sweatshirt flat (chest, length, shoulder, sleeve, cuff, hem and neck) in both inches and centimeters for accurate listings.
Read postA step-by-step guide to measuring a swimsuit flat: the five key measurements, how to read the tag, and the mistakes that cause returns.
Read postA flat-measurement guide to a t-shirt's chest, length, shoulder, sleeve and hem, with a size table and the common mistakes that throw numbers off.
Read postA step-by-step guide to measuring jeans flat across eight points, with doubled inch and cm readings, a numbered diagram, brand size-chart references.
Read postA practical guide to measuring shorts flat across seven points, with a tag-equivalence table backed by ISO and ASTM body-measurement standards.
Read postA workflow for Poshmark in 2026: how fees work, how to set up listings, the flat measurements that reduce returns, what sells fastest, and how to run a closet like a business. Includes a measurement diagram, a measurement-rich vs tagless comparison, and cited Poshmark fee and policy sources.
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