Personalized Physics Heart Dark Products Men's V-Neck T-Shirt. Physics text with a large P and a heart dotting the i in physics is a fun gift design for students, teachers and physicists at birthdays, holidays, back to school 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