Warning of electromagnetic incompatibility!

The bag is ansich not bad, just a little big for the MacBook Air 13 inch.
I would caution, however, before the magnetic closure. If the bag used as a laptop pad and moved relative to the MacBook Air, the electronics can be so disturbed by an electromagnetic induction, that the MacBook hangs up to address these electromagnetic interference source. Speak only when the bag is removed reacts again the MacBook.
I noticed this effect in the setting aside of MacBooks together with the above-mentioned case. By moving the pocket (ie the magnetic fields) relative to the laptop base creates a temporally altered magnetic field which induces a voltage in the electrical circuits of the MacBook.
Because Apple products are made of anodized aluminum, any induced eddy fields are not blocked by the housing. To what extent this electromagnetic interference, the electronics of the MacBook Airs I affected can not elicit. So far, all the disturbances were thankfully reversibly. It is worth noting, however, that the place of the electromagnetic sink can locate on the charging scheme. If the magnet of the pocket on the laptop bottom (at the point where the power supply is plugged in) verbeigeführt it immediately comes to crash.

I would treat the product with regard to the EMC with caution. This clearly shows the advantage of original Apple products, which are developed for the EMC requirements of the products.