The Cap of the Wild is a piece of armor from Zelda: ToTK; it offers a measure of defense against incoming attacks. It is part of the set "Korok Set", and when wearing all 3 pieces of the set ...

A 100% map completion in Zelda: TotK is one monumental task, taking well over 100 hours to accomplish. This includes visiting every named location and collecting 1,000 Korok Seeds, which is arduous.