We're sorry to hear the diapers did not fit. We understand that little ones come in all different shapes and sizes. We measure thousands of babies’ legs, bottoms and waists to try to provide for as many little ones as possible, and it’s so important to choose a diaper that best suits your baby’s individual needs. Of course, you know your baby better than anyone, and we’re happy to share some tips to help you make your decision.First of all, you may notice that our diaper sizes are organized by weight and, since no two babies are the same shape, there is some overlap between sizes. This means your little one can often fit more than one size. To get the best fit and make sure the diaper is neither too big nor too small, check that it fits snuggly around the waist and thighs by running your fingers around the edges and making sure there are no gaps – the diaper should fit well to let baby move comfortably.If your little one is close to the upper end of the weight range, you may want to try a larger size that fits them as our diapers contain more absorbent material as you move up the sizes. We'd be grateful for the opportunity to help you further. We hope you will find a moment to call us at 1-800-632-7435