This t shirt is inspired by the tee famously worn by guitar hero Nigel Tufnel (Christopher Guest) from quite possibly the greatest heavy metal band of all time - the legendary Spinal Tap! As Nigel explains to Marty Di Bergi (Rob Reiner): \"This is exact... my exact inner structure, done in a T-shirt. Exactly, medically accurate, see.\" This is a 100% cotton black t shirt with a \'glowing\' green rib cage print, inspired by Spinal Tap but not an official product. #8ballbestseller Sustainability Message All 8Ball Originals garments are WRAP certified, REACH compliant and Fair Labor Association accredited. They are printed in UK using Oeka-Tex and GOTS certified water-based inks.