The Official "Davinci Drummer" Vitruvian Drummer 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 Leonardo Davinci's Vitruvian Drummer. Perfect shirt if you love drums and percussion and laying down sick beats. Wear it to your next rock show, band practice or rock gig! Great gift for musicians, drummers, music teachers and students. The Official "Davinci Drummer" Vitruvian Man Drummer T-shirt. Lightweight, Classic fit, Double-needle sleeve and bottom hem