I'm looking for a bag for the 12" macbook (not sleeve or case, as in the other thread). What I want: 1. As small and light as possible. 2. Fits 12" macbook and an iPad Air. 3. Fits letter size paper. 4. Not too expensive. I prefer other material than fake leather. I bought this bag: http://www.amazon.com/gp/product/B00P5ZSC5U?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00, only to realize you cannot put a letter sized paper into it. As returning on Amazon is expensive, I cannot just try out many different bags.