Personalized Coolest Mining Engineer Long Sleeve T-Shirt. A snowman holding a shovel and The world's coolest mining engineer text is a humorous gift design for college students and engineers on birthdays and winter holidays. 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