Designed to be worn directly next to the skin and under other odor-absorbing garments. Made of a polyester knit, Base Slayers not only kills odor-causing bacteria, it also absorbs all other human odors. Wicks away moisture; tapered legs. Machine washable; reactivated in your household dryer. Made in USA. Scent-Lok Base Slayers Tops for Men are sold separately and can be found through item search for item number 38-866-425-05