Now i'm using LUCKYSKY PTLSB7912 Black. It's ok, for my previous 15.6" ASUS X54HR, but a bit not enough place, to put 15.6" gl502vmk cause gives pressure on the top of the bag, and bottom of pocket for laptop. Thats best variant, that I seen in local shops(Belarus\Grodno and Minsk). But I'm not sure, that it's suits.
Need help, to understand, ok it, or not, and maybe find good variants for me, I hope, up to 50 dollars.