Hanes Cotton Stretch Bikini Panty - 5 Pack (42W5CS). Hanes Cotton Stretch Bikini Panty - 5 Pack 42W5CS comes in a multi-pack of fun colors and one patterned pair. The covered elastic along the waist is soft for comfort. The cotton stretch fabric has wicking for all-day dryness. Hanes' Cotton Stretch Bikini Panty - 5 Pack is made of cotton/spandex (for solids/prints) and cotton/polyester/spandex (for heathers).