Personalized Mechanical Engineer Gear Sketch Men's V-Neck T-Shirt. Mechanical Engineer text across a gray sketch of a gear is a unique engineering design for engineers and engineering students at 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