Drybar The Brush Crush Heated Straightening Brush. The quickest way to be smooth and frizz-free! The Brush Crush Heated Straightening Brush from Drybar combines the heat of a flat-iron with the structure of a paddle brush to create a smooth, frizz-free look in one easy step. drybar straighteningbrush naturalhair LTKU LTKbeauty