Pet Supply Outlet is proud to carry Messy Mutts in Belmont, Massachusetts. Mud, puddles (the bigger the better), more mud – these are just a few things our furry friends love. Chris and Lauren’s pooches Daisy and Davis are no different. Their favourite place is the great outdoors – unfortunately they like to bring it back inside with them too. And so, Messy Mutts was born: a new line of fashionable and functional dog care products.