I'm about to get the latest MacBook air in 13in but I want it to be protected so I plan on getting a skin and a screen protector but I simply don't know the years whatsoever and when I always look up a skin or screen protector there are these weird item numbers and there always older models. Do the late models skins and protectors even fit the newest model or do I have to find the specific model number? What should I do? I don't wanna get something that doesn't fit. Thanks in advance.