Oscar Jacobson Waldorf Pin Half-zip Sweaters: The Waldorf Pin Half-Zip from Oscar Jacobson a lightweight layer that offers outstanding playability and exceptional comfort. The Waldorf Pin features 12gg yarn-dyed cotton, (gg) refers to the number of stitches per inch. The half-zip design is complemented by elasticised cuffs and hem; both offer a high degree of comfort and promote a stylish look. The Waldorf Pin Half-Zip has been crafted from 100 % Extrafine Cotton; the stylish design complements and elevates the levels of comfort and manoeuvrability during play.