*100% authentic and purchased directly from gymshark* **Brand new never been worn, still comes in the packaging the company sent item in, only took out to take the pictures. NWT. ** *** Please refer to size guild to compare your measurements to the item for sale. No returns on items that don’t fit*** Here’s what the company has to say: A design that’s a true part of the Gymshark story, the Apollo Muscle Fit T-Shirt is a classic. A cotton base with a light elastane content, you can be sure of comfort and stretch however, or wherever, you train. Now with a muscle fit and arm-shaping shortened sleeves. - Muscle fit - Tapered shape - Extra short raglan sleeves - Straight hem and crew neck - Heat-sealed logo to chest - 95% Cotton, 5% Elastane