If you want to rock the over-the-knees boots trend and don't want to break your budget, then I suggest you rush to TopShop store at the Avenues. They have a nice pair of flat over-the-knee black suede boots for around KD 50 only (pictured here). And if you're not into suede, there are a pair of over-the-knees fake snake skin and flat boots at Zara. They come in black and grey.
One word of advice, don't wear them with extra mini black leather skirt and cropped pink top.