Some of our pretty woven dresses come with matching knickers (or nappy covers) up to the age of 12-18months.  We have looked into increasing the availability of knickers to older ages but it is not financially viable or required from the majority of customers.  The knickers are designed with babies that are learning to move in mind, and cover nappies or normal pants when these little ones are crawling, climbing or toppling over while learning to walk.  We understand that a lot of little ones are still in nappies a little older than 18months but believe that these babies are much more confident in their walking and don't need their nappies to be covered as the dress covers their nappies comfortably.