Dolman Sleeve With Gusset

 A Gusset is a triangular or a diamond piece of fabric often added under the arm to allow freedom of movement, improve the fit or reinforce the structural strength. As a dolman sleeve is a design where sleeve is cut as one continuous piece with the bodice of the garment, a gusset is often added under the arm to prevent the apparel from tearing, bunching or restricting movement when the arms are raised.