The bag is made of sewn neoprene, this material is going from from Waterproof, but the seams and zippers are not waterproof. A strong rain, the bag and the camera certainly survive without any difficulty, but in more I would be careful.
Very interesting is also the upholstery through the neoprene, the result of the structure and air pockets intercept crashes. I feel it unfortunately already fallen twice from about 1.5 and 2m height down what caused the bag no damage to the camera and lens the bag with the camera.
And that brings me even to the reason why I give only 4 instead of 5 stars.
The first crash happened because of the carbine (these are made of metal) solved.
However, I'm not sure if I had these clipped incorrectly or he has solved itself.
The second cause and reason for the withdrawal is the shoulder pad, which although very good Cushions but also has a fairly smooth surface. A rubber lining of the shoulder pad would have prevented this.