Personalized Kawaii Pie Pulse Heartbeat Love T-Shirt. Whether it's for a nurse on Valentine's Day or to celebrate the single awareness day in February, browse our collection and surprise your loved ones with this adorable heartbeat design. Show your love and wear it with pride! 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.