Personalized Marching Band Cracked T-Shirt. Marching Band We don't crack under pressure with the word crack in text that appears to be cracking is a fun design for marching band members, staff. Everyone loves our Custom T-Shirts! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.