The blue light-wash baggy jeans list sizes S through 2XL and give three numbers for each: waist, hips and length. The chart does not say whether its circumferences measure the garment or an intended body. Use it to narrow a question for the seller, not to turn a small numerical gap into a guaranteed fit.

Write down two body measurements first

Measure your waist at the point where you expect these jeans to sit, then measure around the fullest part of your hips. Record both in centimetres. The listed waist/hip pairs are S 64/88, M 68/92, L 72/96, XL 76/100 and 2XL 80/104 cm. Each adjacent row adds 4 cm to both columns. This is useful for comparing rows, but the listing gives no rise or stretch information, so it cannot establish where the waistband actually lands or how much movement room you will have.

Try a numerical comparison, then stop before declaring a fit

Suppose your waist is 70 cm and hips are 94 cm. The L row is 72/96 cm, two centimetres above each of your measurements. The XL row is 76/100 cm, six centimetres above each. Those are arithmetic differences, not a fit recommendation: body-size charts and garment-size charts use numbers differently. Ask which kind this is, whether the denim has stretch, and for the waistband measurement taken flat and doubled. If your waist and hips lead you to different rows, check the hip and waistband together rather than choosing solely by the letter.

Use full length only for a first hem check

The listed length moves from 101 cm at S to 105 cm at 2XL, one centimetre per size. Compare that full-length figure with jeans you already own, measured in the same way. The listing does not supply an inseam, rise or leg-opening width, so a 103 cm L length does not predict exactly where its hem will fall on you. Ask for those missing measurements if shoe coverage or trouser pooling matters. The material is described as denim; no fibre percentages or care instructions are provided here. The worksheet is a way to ask better sizing questions, not a wear test.