|Hanes Mens Thermal Union Suit 22806 fiber content is 60% Cotton, 40% Polyester. Hanes Mens Thermal Union Suit Soft, cottony knit fabric One-button flap closure Inseam 31 Sleeve length 34 Features: Traditional union suit. One button flap closure. Now available in 3XL and 4XL!. Hanes Mens 22806 comes with 1 Thermals per Pack.