It took me 4 full days to complete this pack including designing, making patterns, and sewing. This is a technical pack which I'm aiming to use for river tracing. The capacity is around 40L, and it weighs about 740grams, 26 ounces, exculding back pad and aluminum stays. I'm still working with the detachable lid, side pocket, water bottle pockets, and hip pockets etc..











