Very good quality in its fabrics. I hope it will withstand over time. Another positive element is that it has a cushion wherever it hugs the body, on the back and on the straps, giving a very nice feeling when you wear it. It is so big that I will also use it on my trips from now on. The size I received is 47.5 cm. In reality, I wanted it smaller for my standards. Also, the fabric inside is gray.