20 Tips for Selling Clothes Online
20 practical tips for selling clothes online across eBay, Poshmark, and Mercari, with a flat-measurement table and cited sources.
Alize Mendez
June 13, 2026
The Sizely Blog
Guides on how to measure yourself, read a brand's size chart, and convert sizes between brands and countries, so you order the right size the first time.
20 practical tips for selling clothes online across eBay, Poshmark, and Mercari, with a flat-measurement table and cited sources.
Alize Mendez
June 13, 2026
A cross-country glossary of clothing fit terms. See how slim, regular, relaxed and oversized translate (and shift meaning) across 10 markets, with a reference table and the measurements that make fit universal.
Alize Mendez
June 15, 2026
How to find your size when buying secondhand or vintage: ignore the unreliable label and shop by flat measurements, with a what-to-check-by-garment table.
Sophie Clipton
June 15, 2026
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
The 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.
Alize Mendez
June 13, 2026
A 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.
Alize Mendez
June 13, 2026
A 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.
Nella Cheng
June 13, 2026
A practical walkthrough of eBay Advanced Search: sold and completed filters, keyword matching, seller targeting, typo hunting, and saved searches for buyers and sellers.
Jason
June 13, 2026
Block a problem buyer on eBay in four steps, then set buyer requirements so you rarely have to. Includes a threshold-setting framework and how clearer listings cut the fit returns that create problem buyers.
Sophie Clipton
June 13, 2026
A buyer's guide to canceling an eBay order: the one-hour self-service window, requesting a seller cancellation after it closes, refund timing, and the return path once an item ships, with each policy claim cited to eBay's official help pages.
Jason
June 13, 2026
A seller's guide to canceling an eBay order, including the Seller Hub steps, the 30-day window, fee credits, and which reasons avoid an account defect.
Jason
June 13, 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
Measure 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.
Nella Cheng
June 13, 2026
A 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.
Alize Mendez
June 13, 2026
A 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.
Alize Mendez
June 13, 2026
Measure 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.
Nella Cheng
June 13, 2026
A 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.
Sophie Clipton
June 13, 2026
A 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.
Alize Mendez
June 13, 2026
A 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.
Alize Mendez
June 13, 2026
A step-by-step guide to measuring a swimsuit flat: the five key measurements, how to read the tag, and the mistakes that cause returns.
Sophie Clipton
June 13, 2026
A 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.
Nella Cheng
June 13, 2026
A step-by-step guide to measuring jeans flat across eight points, with doubled inch and cm readings, a numbered diagram, brand size-chart references.
Nella Cheng
June 13, 2026
A practical guide to measuring shorts flat across seven points, with a tag-equivalence table backed by ISO and ASTM body-measurement standards.
Alize Mendez
June 13, 2026
A step-by-step 2026 guide to eBay's Time Away (vacation mode): where to find it, whether to pause or allow sales, what keeps running, and how to return.
Alize Mendez
June 13, 2026
A 2026 walkthrough of sending eBay invoices from Seller Hub, with combined shipping, managed-payments payout timing, and troubleshooting, sourced from eBay's help pages.
Jason
June 13, 2026
A practical guide to eBay search: use short keywords, operators, filters and sort options to find better listings and real bargains.
Jason
June 13, 2026
Poshmark and Mercari both charge a 10% to 20% seller fee in the U.S. as of 2026. A side-by-side breakdown of the real fee math, shipping ($6.49 on Poshmark via USPS Ground Advantage vs Mercari's carrier labels), audience fit, and which platform to choose, with every figure tied to a dated primary source.
Alize Mendez
June 13, 2026
eBay SEO in 2026: how Cassini ranks listings, a Cassini vs Google factor table, Item Specifics by category.
Nella Cheng
June 13, 2026
A 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.
Alize Mendez
June 13, 2026
A practical guide to selling vintage clothing online: sourcing, dating pieces, measuring, photographing, choosing platforms, and cutting fit-related returns.
Alize Mendez
June 13, 2026
The average men's ring size is a US 9 to 10, about 59.5 to 62.1 mm around the finger. Here is the full size chart, a printable sizer diagram, and a step-by-step at-home method to measure your ring size without a jeweler.
Alize Mendez
June 13, 2026