To equip armor or weapons, you must go into the menu and select characters/status, then the character you want to select. Now, select the equipment you want to change, and then, from a list, select which equipment you want to change to.

Name	Defense	Effects	Equip To
Hide Tunic	5		All
Karate Gi	10		All
Bronze Mail	16		Males
Maiden Suit	18		Females
Iron Suit	25		All
Titan Vest	32		All
Taban Vest	33	Speed +2 Fire Defense Up	Lucca
Gold Suit	39		All
Ruby Vest	45	Reduces Fire damage by 50%	All
Dark Mail	45	Magic Defense + 5	Males
White Vest	45	Absorbs 50% of Lightning	All
Black Vest	45	Absorbs 50% of Shadow	All
Blue Vest	45	Absorbs 50% of Water	All
Red Vest	45	Absorbs 50% of Fire	All
Meso Mail	52		All
Mist Robe	54		Females
Lumin Robe	63	Magic Defense + 5	Females
Flash Mail	64		Males
White Mail	70	Absorbs Lightning	All
Black Mail	70	Absorbs Shadow	All
Blue Mail	70	Absorbs Water	All
Red Mail	70	Absorbs Fire	All
Lode Vest	71		All
Aeon Suit	75		All
Raven Armor	76		Magus
Ruby Armor	78	Reduces Fire damage by 80%	All
Taban Suit	79	Speed + 3 Fire Defense up	Lucca
Zodiac Cape	80	Magic Defense + 10	Females
Nova Armor	82	Protects Status	Males
Gloom Cape	84		Magus
Moon Armor	85	Magic Defense + 10	Males
Prism Dress	99	Cuts Magic damage by 1/3	Females