Personalized RN Registered Nutcase Men's V-Neck T-Shirt. RN registered nutcase is a funny twist on the acronym for registered nurse and a unique gift design for birthdays, holidays and graduation. 4.7 oz., 100% pre-shrunk cotton Narrow, set-in 1x1 mitered V-neck collar Shoulder-to-shoulder taping Double-needle stitched sleeves and bottom hem