Get up to 75% off select MacBook Air and MacBook Pro covers by Incase at Tanga. Plus, the shipping is free. This Incase Heathered Protective Sleeve for MacBook Air 11" (pictured) drops from $49.95 to $14.99 making it the lowest price we found on this case by $11.50. Or get this Terra Sleeve for 11" MacBook Air in the Natural Canvas color which drops from $44.99 to $10.99. There are cases available in multiple colors and styles for 11",13" and 15" MacBooks, though supplies are limited. Sales tax is not charged in most states.