Uncommon Thick Hide
Rare Thick Hide
Exceptional Thick Hide
It can be gathered from hide animals in tier V-VIII maps with a Master's Skinning Knife (requires Master Animal Skinner unlocked in the Destiny Board), or Grandmaster's Skinning Knife for enchanted varieties.
Thick Hide is the main resource in Steppe biomes, the secondary resource in Forest biomes, and the tertiary resource in Swamp biomes.
Gathering Thick Hide counts toward unlocking:
Gathering Thick Hide counts toward leveling: