We started to change the world in men´s undergarments. With a growing trend of men who take care of their appearance, we created a men's line specially for those who want to look more attractive, athletic and are in need of body enhancing underwear. We strive for perfection and our commitment is to make garments that make every man feel and look better, more masculine and confident. The Rounderbum Padded Muscle Shirt is specially designed with Padded Tech. This new technology allows you to get buff in seconds and looks natural. Feel confident in your own skin! Machine washable. Introducing the latest innovation in shapewear. Our t-shirt with integrated muscle padding makes you look stronger, proportionate and athletic instantly. The 4-way stretch Lycra construction adapts to every body size comfortably. Its discreet low cut neck design is ideal for open collar long sleeve shirts. Superior comfort and design in men's shapewear. Muscle up instantly!! Undershirts made with premium materials. Made with 93% premium cotton and 7% elastane. Subtly defines your muscles. Comfortable and lightweight, with the ideal fit for every day. We want everyone to be able to join the Rounderbum experience, that's why we have 4 different sizes for you to choose the perfect one. Small, Medium, Large and Extra Large. Make sure to check out the size chart!