Symbiont Roll Top Backpack
Combine rectangles, straps and pockets and you have a perfect roll top backpack. Easy! In the end it took me three days to make the pattern and sew all the pieces together. The single sewing steps are not difficult but you need a lot of patience. For the outside material I used a strong and durable polyester fabric and for the inside a waterproof lining. For my taste the daypack has the perfect size and I always take it with me when I go by bike.