Originally just wanted something for our dogs that would help them in an emergency or fun play. Turns out to have more benefits than floating a dog. The strong seams and zipper, secures them,while the two handles allow my 130lb wife to easily lift our 90lb Lab and his 85lb Rottie/lab brother up, around, in/out anywhere. Which is important, cause when the "boys" are soaking wet and even heavier, the construction of the vests come thru. Get one of these before you really need it. You never know what can happen.Can't find anything wrong.