Hi guys... i know there has been so many pursket threads, but i couldnt find the answer to my Q thru search... so maybe u pursket owners can help me out with this one. This wkn my friend and i got bored and made our own pursket for my speedy 30. I didnt really know what goes inside the pursket to make it "stand up", so i stuck some cardboard in. It turned out looking pretty good and i was proud! it lined the size of speedy 30 perfectly and it was indeed organized! but when i started using it, i noticed it tended to fall towards the middle instead of standing and sticking to the sides of bag -> therefore the sides of speedy still can collapse when i use it. Do all of u that have purskets have this problem too? How do u guys fix it? and what do u think is the material inside the manufactured purskets that makes it "stand up" and stick to the walls of purse? and, anyone else made there own pursket here?