Wow, those are really nice! Hmmm...*digs around in wallet for something other than flies*
Edit to add: I may have an issue because I would need 3 different sizes for Wonder until he hits his adult weight! Size 5 would cover him until he hit 55 pounds, probably won't take too long.
The petbuckle one is tested too and is a one size fits all adjustable. I may use that until he hits the bottom of the weight range for the L size (70lbs). The ruff rider is definitely nicer than that one though.