Smart secondhand shopping using garments you own

Buying Secondhand Jeans Online? Six Checks for Waist, Hip and Inseam

A body-size chart is different from a used garment's laid-flat measurements. Use 3sixteen's waistband guide and UNIQLO's inseam diagrams to compare your own jeans and check alterations.

4 min read2026-10-23

3sixteen jeans measuring video

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OriginalMaker's flat jeans measuring photos and videoSource: 3sixteen Measuring Guide

OriginalPhotos showing inseam measurements for different seamsSource: UNIQLO Inseam Measuring Guide

Your style checklist

Check each item as you go.

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01

What you need

Seller's photos and the listed jean size
A pair of your own well-fitting jeans and flexible fabric tape
A short list of questions for the seller
Details about alterations, condition and return terms

02

How to

1. Check the listing for clear full-length photos, the size label, model name and any mention of hemming or previous tailoring. Tag size alone is not enough.
2. Button your own well-fitting jeans and lay them flat. As 3sixteen shows, align the waistband tops, measure across and double only if full garment circumference is needed. This is not the body waist measurement in Levi's size chart.
3. Ask whether the seller's waist figure is a laid-flat width or a full circumference and request a photograph showing the tape against the garment.
4. Ask for the hip measurement and the exact position where it was taken. Compare it only with a similarly measured area on your own jeans.
5. Check the inseam along the inside seam from the crotch construction to the hem. UNIQLO shows the starting point may differ with stitching; ask for a photograph with a tape measure and any hemming history.
6. Compare waist, hip and inseam numbers as well as stretch, alterations and return policies. If the information is incomplete, ask again or skip the purchase rather than assume the tagged size fits.

One more tip

Body measurements and flat garment widths are not interchangeable. Doubling a flat width is only an approximate garment figure; stretch changes fit. Do not reuse seller photographs without permission.

Sources and media

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