These are a unisex Gildan crewneck sweatshirt.  Image will be screen printed on the front and back.
 
8 oz./yd² (US) 
Classic fit
Air jet yarn for softer feel and reduced pilling
Double-needle stitching at shoulders, armholes, neck, waistband and cuffs
1x1 rib with spandex for enhanced stretch and recovery
Tear away label