This is an AUTHENTIC My Bodybuilding Network Party Rock Gym, Hollywood California Tee. : By far our most popular tee, this Body Building custom t-shirt is a great, mid-weight, standard fit shirt that will fit any budget. Designing your custom Body Building t-shirt has never been easier. Product Details: •6.1-ounce, 100% cotton •Double-needle neck, sleeves and hem; Roomy Unisex Fit •Ash is 99% cotton, 1% poly; Sport Grey is 90% cotton, 10% poly; Dark Heather is 50% cotton, 50% polyester •Decoration type: Digital Print or Screen Print (based on design quantity) •Made by Gildan