Personalized Hydraulic Engineer Water Drip Long Sleeve T-Shirt. Hydraulic Engineer Water Drip Long Sleeve T-Shirt - Charcoal display Hydraulic Engineer in curved text dripping in water. Makes a unique gift design for civil engineers and engineering students! Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL