Kosher Casual Women's Modest Swim & Running/Exercise Elbow Sleeve Shirt Neckline sits just below the collar bone. Sleeve comes to the top of the elbow. Double layer chest panel for increased modesty. NO built in bra. Fitted style so it should not float up when in the water - for a relaxed fit order one or more sizes up from your regular size. Quick drying chlorine resistant fabric - 88% Polyamide/12% Spandex - UPF 50+ UV protection Imported; Machine wash cold with like colors Do NOT use drop down chart - see size chart in images of product