These are printed on Gildan Softstyle Crewneck Sweatshirts. 
 
8.4 oz/SqYd, 80% ringspun US cotton, 20% polyester
2-end ringspun cotton face fleece
Made with 80% sustainably and fairly grown USA cotton
 
Feature:
 
1x1 rib with spandex cuffs and bottom band for enhanced stretch and recovery
Dropped shoulder
Double-needle topstitching throughout
Classic fit tubular body
Grey pearlized tear away label