Maaji Reversible Bikini Set size M

The top is a halter style with a lace up back. There is no size tag on it and never had one to my knowledge and one of the laces for the top is missing the knot at the end and never had one when I bought it. The bottoms have a size tag but that would need to be removed in order to wear it reversible. Both pieces are reversible to a blue bird pattern as shown in pictures.