Let's be blunt—one-length haircuts are all the rage. Don't get us wrong, we still love layers and ALL the texture, but there's something undeniably sexy and strong about a straight-line cut. Like every other style of cutting, mastering the proper technique can take some time. Here, Andrew Carruthers (@andrew.carruthers), Sam Villa education director, shares his go-to tips for ensuring a precise, one-length cut every time.