2xist 6023 Fusion Trunk Boxer Brief Underwear. Classic trunk cut. Striped logo elastic waistband. Double layer paneled pouch. Made of 52% Polyester 48% Nylon. Fusion is a fast paced double sided performance fabrication. In hot colors and piecing it is definitely bound to capture your attention. The FUSION Collection is a blend of both nylon and polyester, perfect for the modern man in the fast lane. The fabric's double faced mesh provides breathability and is natural moisture wicking properties.