I know it's crazy, but he's only a year old and has hip displaysia. We are a multi-dog family and often go for hikes through our woods down to the river. We don't want to leave "Charlie" behind and think the swimming will do him good, but the walk down is just too much for him. My husband and I are willing to take turns carrying him and need a carrier that will help hold him. From the other comments here, I see that there is a growing need for larger carriers. I would be so grateful if someone could start making them!