These jackets have a sewn shut neck rather than velcro and a tail loop at the back.
These jackets are designed to allow the dog to actually pull in the jacket instead of through their harness. They have a neck that is sewn shut rather than velcroing shut and there is a tail loop at the rear where you can snap in your tugline. Same black suplex outer fabric with fleece lining. Sizes are color coded by the fleece color. Small is red fleeece, medium is green or grey, large is blue, extra large is black.