USA Flag Swimming Trunks Rocky by Plus Eighteen. Look like a knock out in red, white, and blue in USA flag swimming trunks. These swim shorts are the classic boxing swim shorts inspired by Rocky. Featuring an all-American flag pattern with standout stars and stripes. Embroidered with “Fight Club” on rear waistband and varsity “5” detail on front leg. USA flag swimming trunks include inner white mesh lining, side pockets, and faux fly panel. Stretchy elastic waistband can be easily adjusted with hidden drawstring tie. Punch some patriotic pride into your swimwear with the USA flag swimming trunks.