Two single pair knit boxer briefs by simply underwear men's size XL, regular fly. 55% cotton, 42% polyester 3% elastane on the rockets and 95% cotton 5% elastane on the alien pair. Set put together, especially for outer space fans featuring aliens and rockets! Experience comfort with 's knit boxer briefs. Featuring a stylish black and green design, these briefs offer a snug fit for everyday wear. M1