Everlane The Party of One Tank Dress Rosewood Brown Size Medium NWT New with tags and no flaws. Your go-to turtleneck—in dress form. Made of soft, breathable cotton that hugs in all the right places, the Cotton Mockneck Dress features an elevated neckline, a slim A-line cut, and a versatile above-the-knee length. Dress it up with heels or down with sneakers—either way, you’ll be getting a lot of wear out of it.