Wondering about WonderTex? We recently renamed this best-selling fabric to capture all its wonderful qualities (machine-washability, wrinkle resistance, high stretch.). It's the same amazing fabric, finally with the glitzy new name it deserves. With its wear-everywhere silhouette and stretchy-yet-structured fabric, this dress was designed to make your life easier. Three-quarter-length sleeves offer comfort and coverage, and the included belt cinches your waist.