I always had summer and winter harness's, winter harness were bigger to go over sweater or coats. When my last girl passed away I swore no more dogs, and donated everything dog related to my local no kill shelter. Then I got Cody, he was unplanned, a gift to me from my vet. So now off to Pet Supplies, PetCo, Pet Smart for toys, coats, sweater harness's, leashes, collars, everything. I saw they now sold coats with loops for leashes. Depending on where we are going I will use one of these coats, walks he wears a sweater with a bigger harness that he fits over his sweater. Even tho Cody does not pull I still use a harness, if he sees a critter he will pull on leash to run after it, I take no chances, I had one little girl with CT, I never want to hear another baby cough as she did. Better to be safe then sorry, harness for my babies only, collar for tags only.