Personalized Quantum Engineer Zombie Fighter Long Sleeve Creeper. Quantum Engineer I fight zombies in my spare time is a funny gift design for engineering gamers at back to school, birthdays and holidays. What would this world be like without them? For chillier weather, dress baby in this soft long sleeve creeper in a great fitting 1x1 baby rib. 5.0 oz., 100% combed ringspun cotton, 1x1 baby rib. White is sewn with 100% cotton thread, Flatlock seams, Double-needle stitched rib binding on neck, shoulders, sleeves and leg openings,Reinforced three-snap closure on binding.