Have now already the second of them. The first was broken for about 3 years, thereby tearing the fabric strips that go over the shoulders. Since the first fit and three years life corresponded to my expectations I bought back the same. Unfortunately, this processing was under any dignity. Alone in the trailer, only during transport are two glands triggered by the shoulders, where unfortunately a screw was untraceable. Matching spare screws were unfortunately not here in reserve. I then moved to the screws and can say that even 90% of the screws were more than easy!