Personalized WTF - Wine Tasting Friends T-Shirt. WTF - Wine Tasting Friends. If you enjoy spending time drinking wine with your friends, this is for you. Even if your friends are me, myself, and I. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.