As others have pointed out, the clear plastic window pane allows any cards inside to fall out - no matter how many you pack. This is a major disadvantage because every time I take my wallet out of my pocket everything falls out on THIS side and I have to try to catch them all or pick them up off the ground. Great design idea as it is thin and seems durable after 2 months. I used it. But I couldn't get over a bag spilling its contents every time. When this has happened 5 or 6 times you will find yourself tossing your Big Skinny in the Big Trash Can just like I did.
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