I really wanted to love these :/ We own other Keen shoes for my son (2yrs old) and they are awesome! I wanted to get a sandal. Right now his favorite sandals are his crocs because he can get them on and off himself. But due to the loose fit hes always tripping in them. When I found these Keens Rios I thought theyd be a perfect mix. Adjustable draw string for a snug fit, easy slip on, lightweight, water proof, non slip (way better tan crocs) but...They are super difficult to get on! The strap that goes over the back of the heel has to be pulled on pretty hard to get his foot in, it feels like it could break. An adjustable strap would be nice. Or even just a button closure so the back could open up for easy on/off. My son won't leave them on, Im not sure if its due to them being uncomfortable? I really hope I can return them, even thought hes worn them a few times, they weren't cheap. We are just so bummed that they didn't turn out to be the summer sandal I wanted them to be. I think we are going to try the classic keen sandal.