Personalized Patterned Ohm Symbol Men's V-Neck T-Shirt. An ohm symbol with a black and gray pattern is a unique gift design for electical and computer engineers and engineering college students at back to school, 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