The Duluth Trading Company Men's Buck Naked Underwear Boxer Briefs in size 3XL and blue color are made of lightweight and breathable nylon fabric. These boxer briefs feature a solid pattern, tagless design, and stretch material, making them comfortable for all seasons. The machine washable garment care ensures easy maintenance, and the brand's reputation for quality and performance is reflected in the Buck Naked collection. Perfect for men looking for comfortable and durable underwear in a larger size.