Men's Sleeping Pants Styx Are you looking for quality men's sleeping pants that are made in the Czech Republic? Then these sleeping pants from the Czech brand Styx are the right choice. Men's sleeping pants are made of comfortable material, they have a pleasant elastic waistband that does not cut anywhere. The trouser legs are loose. Learn more below in the classic product information. Size chartTROUSERS WAIST CIRCUMFERENCE (CM) S 7079 M 8089 L 9099 XL 100109 XXL 110119