Dress by Unique 21, Check design, It's never been so hip to be square, Square neck, Zip front, Fit-and-flare style, Regular cut, Fits you just right, Exclusive to ASOS. Specialising in clean, minimal tailoring, British label Unique 21 smartens up your wardrobe staples with its latest offering. Designed exclusively in-house, the brand creates relaxed versions of traditionally formal separates. The result? A contemporary collection of tuxedo dresses, wide-leg jumpsuits and boyfriend blazers.