Fashion Sports T-shirt Muscle Men's Letters Long Sleeve T-Shirt. Due to the summer high temperature, thick fabric is used. This reduces the shrinkage rate, and in order to prevent sweat stains, a slightly longer sleeve is designed. The collar and neck design are casual, and the pattern on the chest is lively with stars and letters. The hem is straight with no seam on both sides, making it light in weight so as not to make you sweat too much.