When refer to hiking bag, the first idea comes to our mind is how to make it lightweight and comfortable.
Usually the materials used on hiking bag is durable enough with reinforcement stitching, so what we have fix is to source lightweight and structure materials, and the back system.
After checking the items of hiking bag we have worked out, I still think nylon ripstop as what we show below is most lightweight. Upon the back system, aluminium support with mesh for ventilation.