This is a DIY Aerobar bag for storing a jacket, gloves or water bottle on your bike while you ride. This bag folds up small enough to fit in a jersey or pants pocket. No longer do I have to get off my bike to store a jacket in my saddle bag or panniers, I can quickly stash a jacket while waiting at a stop light. I used recycled ripstop nylon fabric from an old camping chair bag, but you could use anything, like an old pair of jeans, or buy new material from a fabric store. This bag holds about 2.5 liters, weighs only 30 grams, and used less than $5 in materials to make.

   • Eric's Bike DIY Projects