Raglan sleeves are sleeves attached to a garment via a diagonal seam from the armpit to the neckline (rather than a simple circular seam at the edge of the shoulder). They are often made in a different color than the torso of the garment and are constructed from one piece of material. Raglan sleeves are commonly used in sportswear, as they are designed to give greater freedom of movement for the arm and shoulder.
raglan sleeves