ZARA baby denim pants. ◯ Size: 86cm (12-18 months) The waist is elastic and adjustable. (Please see image 6.) This size is perfect for toddlers. A toddler in bootcut denim is just so adorable, you'll want to take tons of pictures! These denim pants are easy to match with any top and are a cute item. Please understand that these are used clothes worn by a child before purchasing.