Making Tracks was designed with the intent of using large block prints. Highlight and play with them. The tracks that highlight the pictures are made with strip sets or you can substitute a stripped fabric to get the same effect. The pattern is written by lenghtening the sweatshirt you are using so you can adjust it according to your personal perference or to accommodate the fabric you are using. Included in the pattern is a detailed diagram of the block panel lay outs with all measurements. We recommend 50/50 blend sweatshirts with set in sleeves for best results. The pattern includes directions for fitting the sweatshirt, lenghtening and lining the jacket. There is no pattern sizing. The pattern is written for all sizes. Sizing is determined by the sweatshirt size that you purchase.