ON A RECENT sunny day, a French bulldog named Hector took a walk with his owner to a café near their home in Los Angeles. As usual, Hector wore his $380 French leather “Dorró” collar and $520 “Tascher” leash, both in beige. That day he left his $680 “Colombo” harness at home, although it’s one of his favorites. All are made by Pagerie, the high-end dog accessories company launched by his owner, Mandy Madden Kelley, a lawyer turned fashion influencer turned entrepreneur. According to Ms. Madden Kelley, a neighbor walking a cat (this was Los Angeles, after all) stopped and asked where Hector’s accessories came from. “It literally looks like it’s Hermès or something,” the admirer said.
For Ms. Madden Kelley—a New Zealander who blogs about motherhood, beauty and, yes, dogs—it was a gratifying moment. “I felt