May The Force F=MA Be With You Funny Nerdy T-Shirt Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat May The Force F=MA Be With You Funny Nerdy Science Physics T-Shirt A unique gift idea for a friend or family member. Wear it day or night for an instantly awesome look! Printed using the latest in garment printing technology. For a more loose fit, please order a size up. Lightweight, Classic fit, Double-needle sleeve and bottom hem