Personalized Marching Band Pressure Egghead White Text Toddler Full Zip Hooded Jacket. A Marching Band egghead with We don't crack under pressure in curved text is a humorous gift design for marching band members and staff. 7.5 oz., 60/40 cotton/polyester. Jersey-lined double-needle hemmed hood. Pouch pockets for all their treasures. Coverstitched shoulders and armholes. Coverstitched rib waistband and cuffs.