The shag is a great long haircut for thick hair and super trendy right now. "The two popular shag styles are the ultracurly, ultralayered and then straight with long curtain bangs that sweep," NYC hairstylist Devin Toth says. "The curly shag is very round with a pure release of texture. It will be a seamless transition from bangs to short layers to long layers to bottom length. The straight shag can be styled however you want, but it generally has longer layers with the focus of the style being the bold curtain bangs — sweeping but not fully connected to the rest of the style."