Good idea, total POS. I have this and the Bug from Arkel. The Arkel is many times better. Save your pennies for the Bug. You'll use it. My cat sleeps on my Nashbar one. He likes it much better than I do. Don't be taken in by the cheap price as I was. Look at the photos. Poor design, poor quality. A total waste of money. I use the Bug every day. It was worth every penny.

As you can see, it is really a black plastic dry bag that fits into a red nylon "holder" with a back plate that mounts to a rack, and is zipped off, revealing the backpack straps. What you are suppost to do with the mounting plate is anyones guess. Find a way to lock it to your bike, or carry it I suppose. The hook mounting system is ca 1973. My ancient Bushwacker panniers had a better mounting system then these. The hooks are pop rivited on, so there is nothing to unscrew. Which means you will have to drill them out if you want to put another mounting system on. By far this is the WORST bike related product I have ever purchased.