Personalized Yoga My Heart Will Go On But My Legs Are Killing Me T-Shirt. Ideal for gifting or personal use, this design is perfect for anyone who loves yoga and appreciates a good laugh. Show off your passion for fitness and fun with this stylish and relatable apparel. 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.