The size guides are a general guide for selecting the correct size at H&M based on your own body measurements.   The measurements in cm/inches that we in some cases specify on the product pages is for the specific product or garment you are looking at. The measurement in cm/inches that we display on the product pages can however vary a few centimetres up and down depending on the material used in its production. Use these measurements as a guideline to find a suitable style or fit for you, but not as an exact value.