Personalized Social Media Manager T-Shirt. T-Shirt - Black for social media, multimedia, social network managers, communications managers, internet network manager with thought bubble flow chart. Everyone loves our Custom T-Shirts! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.