Cascadier items cannot be discarded

[Koreos]

ISP: Mediacom

Type of Internet Connection: Cable

Internet Connection Speed: 30Mbit/s

Date & Time: 12pm CST 9/9/2013

Frequency: Always

Character Name: Kore Harumi

Race: F Miqo'te

World: Excalibur

Class/Level: 45 Bard

Area and Coordinates: Old Gridania (10, 8)

Party or Solo: Solo

NPC Name: None

Monster Name: None

In-Game Time: 9:40pm

Steps:
As a female Miqo'te who accidentaly bought 3 male items (Red Summer Top, Blue Summer Top & Green Summer Top), I cannot sell or discard such items. I barely have any space left in my inventory and my armory chest is full, so I really want to just discard them. I can discard just fine the ones I can equip (the female ones).

Screenshot:

[C-croft]

Isn't there an NPC you can trade to swap the male and female pieces? Or is it just for 1.0 swimwear?