This is a good back to carry your S1 around with. It is not padded like the official bag, but then it is also reasonably priced. This is good for stopping your S1 getting scratched when you put it in the car with the other stuff, and it will work for that. Fits well, one basic strap at the top and the top seals with a bit of velcro at the front. Not totally secure but it isn't coming off. All in all good for the price and saves you from scratches.