Men’s trunks Men’s trunk underwear made from cotton/spandex Machine wash Imported Ron Chereskin underwear style number RCU1003P Stripe for the picking. Ron Chereskin Retro Stripes men’s trunks feature an allover mini-stripe pattern for a supremely stylish look. Designed in body-contoured stretch cotton, these colorful men’s briefs offer comfort, style and support for every day of the week. A fun new take on men’s underwear, Ron Chereskin Retro Stripes trunks also feature a contoured pouch and lush jacquard waistband.