Here's the Old School i'm trading for different Berets:

Retired Red Nether Enchanted Robe (2 SC color berets, i will take coin shop red )
SC Yellow Feral Fire Hoodie (2-3 Berets depending on the colors)
SC orange stalking Panther Gi ( 1 SC colored beret)
BerryBright Feral Fire Archer Leggings (2 SC colored Berets)

OR: I would trade the Stalking Panther Gi and the Feral Fire Hoodie for white beret
OR: I would trade Nether Enchanted Robe for white beret

Keep in mind that i already have Black and SC Yellow Berets!