The Calvin Klein Boxer Brief 4 Pack in size Medium is a set of high-quality underwear made from a blend of polyester and elastane, offering a comfortable and stretchy fit. These solid boxer briefs come in assorted colors and feature moisture-wicking technology, making them practical for everyday wear. The Calvin Klein brand ensures a stylish and reputable product, while the microfiber fabric type adds a touch of luxury. Easy to care for with machine washable instructions, this underwear is perfect for men looking for a reliable and comfortable option.