These are Uniqlo stretch pants. They are white, so please refrain from purchasing if you are looking for perfection. The waist is elastic. Measurements (laid flat): Waist: approximately 30cm, and it stretches further due to the elastic. Inseam: 71cm. Please understand that these are pre-owned and stored at home before purchasing. While I believe there are no noticeable stains, please also be aware that this is a personal inspection and the item has been stored at home. I will ship with simple packaging. Thank you for your interest.