Brown plain muscle T-shirts are the core of our day-to-night wardrobe – we’re obsessed. Super fresh and perfect for showing off those gains, we love teaming a muscle T-shirt with joggers and canvas trainers for a laid-back daytime look. For special occasions, make a statement and match your plain brown muscle T-shirt with a sharp suit and smart shoes. From season to season, this must-have staple will make you turn heads wherever you go!