Personalized Let Shiitake Go Long Sleeve T-Shirt. Long Sleeve T-Shirt - Charcoal with a funny meditating yoga mushroom says LET THAT SHIITAKE GO. Bad food pun, funny food pun, yoga lovers gift. 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