Personalized Funny Hydraulic Engineer Men's V-Neck T-Shirt. Funny Hydraulic Engineer Men's V-Neck T-Shirt - Black say "Flow Rate Beer Hydraulic Engineer" in white text and makes a fun gift design for ale loving engineers! 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