ItemEvents.armorTierRegistry (event => {
  // Slot indicies are [FEET, LEGS, BODY, HEAD]
  event.add('limitless', tier => {
    tier.durabilityMultiplier = 1500
    tier.slotProtections = [18, 22, 24, 18]
    tier.equipSound = 'minecraft:item.armor.equip_diamond'
    tier.repairIngredient = '#forge:ingots/gold'
    tier.toughness = 16.0
    tier.knockbackResistance = 1.2
  })
});