This case is no exception. It is very soft inside, outside padded optimally, has a well-sewn zipper, is generally extremely high and looks to taste of even chic.
To better fix his laptop inside, are located in the outer four corners bungees.
Personally I do not take this as a closing the zipper ensures my opinion enough stability and security.
I myself use a 13.3 "Asus UX32VD (External dimensions: 324 x 224 x 21mm) and can say that the case of the horizontal dimensions fits perfectly in.
Unfortunately, it is however well designed for rather thick notebooks - which means that in the depth always quite a lot of room is available and the fabric does not fit snugly.
A "tight-fitting" design so I can, as indicated in the description, do not confirm.
A picture of the situation is also found in the customer photos.
The profile of the sheath is at the thickest branch about 6cm - and not 3cm specified by the manufacturer.
Most ultra- and Macbooks will therefore be to lean for a perfect fit.
Conclusion
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The slipcase in diamond style is highly recommended due to the high quality processing, the good zippers and reasonable price quite - at least when the laptop has the proper thickness.
Most ultrabooks are this probably did not have enough on her hip and thus lead to a bulging and a lot of air in the depth of the envelope.
In my measurement of the laptop for optimal fit between 3.5 and 4 cm thick should be. Spontaneously come to mind here only laptops from Lenovo.
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Questions and suggestions, I will gladly answer in the comments. If you are missing one aspect or discover any mistake, I'm talking about a little hint.