In this game, Evasion > Defense. However you can still get away with decent Defense whilst retaining your Evasion. Some of the least evasion reducing armours are as follows;
All Shields
Copper Cuirass
Silver Cuirass
Ruby Cuirass
Gold Cuirass
Diamond Cuirass
White/Black Robe
Power Vest
Black Garb*
Mythril Helm
Giant's Helm
Twist Headband
Gold Hairpin
Ribbon
Thief's Gloves*
Protection Ring
Power Armlet
Items tagged with * will actually increase your Evasion, provided your Agility hasn't capped at 99 yet. Everything else will only reduce your Evasion by 0~5%. Really you shouldn't have to use anything but the armours given above unless your Agility is already high enough to break the 99% cap whilst still equipping the heavier armours.
