I have conducted two more user testing (3 in total) with delivery cyclists from different restaurants. They were very helpful with many suggestions for improvement. They commented on the dimention of the bag and the size they would feel comfortable riding with. The opening and side pocket locations are good also. They like the function of cushinging and insulated layer for heat keeping. I also realize that some delivery cyclists are willing to invest in their bicycle and accessories that can help them to make their job easier and better.