The Curved Sleeve Crew in Black from Helmut Lang 

Details
Crew neck sweater in a superfine Merino Wool Silk blend. Sleeves are shaped at the cuff to be worn at the elbows. This garment was designed with many body types and gender expressions in mind.

—      Crew neck
—      Curved long sleeves
—      Slim fit
—      Rib knit trim details