Personalized 2021 Best Shot T-Shirt. Class of 2021, Taking Our Best Shot! A gloved hand with a syringe fills the zero. 2021 seniors have a lot to deal with, but they will give it their best shot. Vaccinated. Everyone loves our Custom T-Shirts! 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.