The Blue Y2K Star Baggy Jeans have S, M, L and XL options and a chart for waist, hip and length. The waist rises by the same amount from one row to the next; the hip does not. If you are between rows, compare both dimensions with a pair of jeans you already wear, then check what the seller means by each chart number.

Where do the size steps change?

Here are the listed measurements in centimeters. The source gives inch equivalents too; using centimeters avoids extra rounding when you subtract adjacent rows.

Each move adds 4 cm at the waist and 1 cm to the listed length. Hip space increases by 2 cm from S to M, another 2 cm from M to L, then 4 cm from L to XL. So an XL-to-L comparison is different from an L-to-M comparison at the hip, even though both waist steps are 4 cm. The chart gives no rise or thigh measurements, so it cannot describe the full baggy silhouette.

What if my reference jeans fall between M and L?

As an example, imagine a comfortable pair that measures 76 cm around the waist and 103 cm around the hip, measured at consistent points. Those figures sit halfway between the M and L chart values: M lists 74/102 cm and L lists 78/104 cm. This does not by itself choose a size. First ask whether the listing numbers are finished-garment dimensions or body-size recommendations. If they are garment dimensions measured the same way as your reference pair, M would be 2 cm smaller at the waist and 1 cm smaller at the hip; L would be 2 cm and 1 cm larger. If they describe body dimensions, that subtraction cannot be used as garment ease.

How should I measure and check the look?

Fasten your reference jeans, lay them flat without stretching, and note the waistband width and the point at which you measure the hip. Double the flat widths only if you are comparing them with circumferences. Measure the full outseam separately from the inseam: the listing says “length” but does not define its endpoints. Keep the pair and tape flat in a photo so you can compare methods with the seller if needed.

The listing identifies denim but gives no fiber percentages or stretch behavior. Ask for the fabric label, rise, inseam and a flat-lay waist measurement before relying on a close size call. For the star design, check the selected Blue option photos at the front and back; the chart alone cannot tell you where the stars fall on your chosen size. The light-wash baggy-jeans guide covers another chart, but use this product’s rows for this pair.