Yes , I just bought this sleeve it was cheap and it fits well, I have only had it a few days but seems to be a good fit .http://www.amazon.com/gp/product/B0085B772A/ref=oh_details_o03_s00_i00?ie=UTF8&psc=1
Yes. I have the new MacBook Air 11.6 inch model. I purchased from Amazon the rooCase Neoprene Bubble Sleve. It is great, MacBook fits nicely in the case and it has a zippered pocket on the front for my charger. I keep my MBA in the Case. It fitted my needs.