Personalized Certified Nursing Assistant CNA Gifts T-Shirt. Give this CNA design as a nursing appreciation week gift or to say thank you to any certified nursing assistant. 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.