These are wonderful! My son, who is 6 and only weighs 42 lbs., is skinny and even the adjustable waist pants fall off him. These are definitely the answer. We also tried suspenders, but they aren't as comfortable to him because they have to go over his shoulders and then he has to tuck in his shirts. My son says, "The Dapper snappers are good because they stretch and just go on the back like a belt." My only negative is that the elastic seems to stretch out and not go back all the way after just a couple of wears. One went through the wash and seems okay, but I'm concerned about long-term wear, especially for the price we paid for them. Overall though, a really good product that I recommend to parents of skinny kids.