Leather armor can be repaired/reinforced with armor kits, adds craftable/dyeable bundles, and allows for recycling of leather items.
Bundles are craftable and can be dyed similarly to leather armor.
Leather equipment can be recycled with shears.
Armor kits can be used to reinforce leather armor, giving it additional durability and increasing its total protection.
Potion effects from leather armor are applied every time the armor is damaged.