Why Simple Series? Dog harnesses have gotten complicated. We get it with so many different choices it can get exhausting to choose the right one. A dog harness at its core should be be easy to use comfortable and durable. This is what we had in mind when designing our Simple Harness Collection a set of basic yet effective harnesses that get the job done. Get ready for that daily walk in a matter of seconds not minutes. Why Simple Step In? Simple Step In is the only step-in harness in our simple collection. If your pup is sensitive to over-the-head harness this is right for you. Step in and buckle up. With these two simple steps you and your pup will be ready for that walk in no time.