Our 11" MacBook Air sleeve and the 13" MacBook Air sleeve, along with our MacBook Pro sleeve are the perfect protective solution for whichever Mac you have. One customer told us that he had left is MacBook within its ColcaSac on top of his car while leaving school. While ramping on to the freeway his MacBook slid off the roof and hit the ground at an estimated 20 mph. You must be thinking to yourself, "There is no way his computer survived this!". Wrong. He told us that his computer had one small dent, and was totally functional. Pretty cool story, but we don't recommend testing this on your MacBook.