Yeah, this is a little pricey for a life vest for a dog, but it's totally worth it.
My 60lb Lab/Pit mix used to get sick from swallowing water every time he went swimming. With the vest, he get's that extra bit of flotation he needs to keep his head above water! The handle on top helps me yank him out when he can't quite climb up the side of the pool or lake by himself.
It seems like it's going to last forever.