Wallmart, Petsmart, Petco..... in otherwords, about anywhere. The chain stores have harnesses that will fit them. Its nice if you have a local independent close by that is competitive.
Yeah.... clothing is hard to find for them. LariP makes most of HRH's clothes. She custom fits the clothes so watch for one to be auctioned off in an upcomming charity auction here in February. HRH Originals are quite sought after... LOL