This jacket/harness combo is perfect for my detection dog. It keeps her warm on chilly days in the field or on the boat, and I like that I don't have to squeeze her harness under or over it. I also like that there is both a front and a back clip option (though the front clip option does sometimes cause the jacket to slide a little sideways when she's running hard; not a big deal for me/us). It's well-constructed, fits nicely, made of high-quality materials, and looks great...plus, it has functional pockets! Would definitely purchase again.