Unable to Discard Swimsuit

[Mindyrenee]

ISP: Comcast
Type of Internet Connection: Cable
Internet Connection Speed: Cable
Date & Time: Currently
Frequency: Always
Character Name: Sabra Shadowfang
Race: Miqo'te Female
World: Balmung
Class/Level: All Levels
Area and Coordinates: All Areas
Party or Solo: Both
NPC Name: None
Monster Name:None
In-Game Time: All Times

Steps:
I accidentally purchased a few male versions of the swimsuit from the summer event using bomb ash. I am unable to discard the item from my inventory and as a result it is permanently taking up 2 spaces. Right clicking on the item shows Discard but the option is grayed out.

Any help you could provide would be appreciated.