Cream's lovely CRRihanna shirt blouse. Collars at the neckline, and a button placket that extends all the way down the front. 3/4 length sleeves with two buttons at the cuffs. Beautiful perforations on the sleeves, sides of the hem and upper back.
The material is 100% cotton,  which makes the shirt ideally light, breathable and easy to care for. 
Machine washable at 30 degrees on a gentle cycle.