Cottonique Latex Free Cotton Thermal Long Johns w/ Fly (M17711). The Cottonique Latex Free Cotton Thermal Long Johns w/ Fly M17711 features an open fly pouch with supportive dart, tapered legs with spandex-free cuffs, relaxed styling, and covered elastic waist. Cottonique's Latex Free Cotton Thermal Long Johns w/ Fly is made of knit cotton.