The Olive photo of these one-size cotton harem pants shows a gathered waistband with a drawstring and rounded, roomy-looking legs that stop above the shoes. “One Size” names a single offered option; it does not tell you where the waistband will sit or how the legs will fall. Four numbers in the product source are more useful: waist 70–100 cm, hip 126 cm, thigh 83 cm and length 88 cm.

Start with the waist range, then check the fixed widths

Take trousers you own that stay comfortably at the waist position where you intend to wear these pants. Measure their waistband relaxed and gently extended, then measure the hip and one thigh at consistent points. The listed 70–100 cm is a range, but the source does not define its two endpoints or say how much pressure is needed to reach 100 cm. Being inside that interval alone does not guarantee comfort. The 126 cm hip and 83 cm thigh figures deserve separate comparison, especially if you want the rounded shape shown in the photo rather than a close fit.

For an arithmetic example, suppose your reference trousers measure 82 cm at the waist, 110 cm at the hip and 60 cm around the thigh. The waist figure lies within the stated range; the product’s listed hip is 16 cm greater and its thigh 23 cm greater. Those gaps suggest more room on paper, but they are not a fit promise. The listing does not define the hip and thigh measurement points or whether its figures are finished-garment circumferences. Ask for that method and compare like with like. Our garment-versus-body measurement guide can help you avoid comparing a body circumference with the wrong kind of chart.

Check the cropped length on your own body

The listed length is 88 cm. Measure a pair of trousers from the top of its waistband to the hem along the outside leg. If your reference is 90 cm, the stated difference is 2 cm; ankle position can still change with waistband placement and the way the leg curves. The Olive photo shows the hem above the shoe, but it cannot establish where an 88 cm leg will end on a different person. Ask whether the seller measures along the outer seam and whether the waistband is included.

Confirm color and care

The selector lists Pink, White, Mint and Olive. Only Olive is established by the featured image, so check an image of the exact color you plan to order. The source calls the fabric cotton but does not give a care label or shrinkage figure. Request those details before choosing a close length or laundering method. Shoes and tucked tops can alter the look of the rounded leg, but they do not change the chart measurements.