Personalized Knitting Is My Therapy Long Sleeve T-Shirt. Cute gift for the Mom or Grandma who loves to knit says knitting is my therapy on a Long Sleeve T-Shirt - Purple. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL