This is a custom holographic image on a 100% preshrunk cotton t-shirt. 
 
Features
4.5 oz., 100% ring-spun USA cotton
Double needle stitching on sleeves and bottom hem
Taped neck and shoulders to provide durability
Reactive-dyed for longer lasting color
Pre-washed to minimize shrinkage
Tubular construction
Ribbed crew neck
Tear-away label