Raglan
Raglan is a type of sleeve where the seam runs diagonally from the underarm to the neckline, creating a popular seamless construction for sweaters.
Explanation
Raglan is a sleeve construction where the seam runs diagonally from the underarm up to the neckline, instead of having a horizontal shoulder seam. This makes raglan especially suited for top-down sweaters. You start at the neck and increase evenly at four points (two for the front/back, two for the sleeves) until you reach the underarm. Raglan provides good freedom of movement and is relatively simple to knit.