Osprey DrySack 20
It is easy to use rectangular bottom shape
Since the shape of the bottom is rectangular, fits in the Zach is good. It puts such as rain gear is in the tent, can be used as a pillow.
Easy to use!
Since the rectangle of the bottom, is fit in Zach is good. In the tent nights, also became a pillow to put the rain gear!
Shape, weight, waterproof, is very easy to use is good none so very well made product.