Love it for my son , he is a chewer, and he loves that he can chew on these after his milk, love that they are top dish washer safe, would love it even more if it was micro safe. plus no one makes lids for sippie s , we carry them around every where, and would love lids to keep them clean and germ free, my little one gets sick a lot, do to liver disease and other health issues, and had to drop him from pre-k, so yes it would be awesome for future kids, germ free sippies to have lids. Thank you 😊