How to get the Feline armor in The Witcher 3

The Feline armor diagrams are found in a cave on Temple Isle in Novigrad and require level 17, with drowners, wraiths, a golem, and a witcher standing in the way. The light set includes four armor pieces, two swords, and a crossbow, boosting attack power at the cost of damage resistance. Enhanced, superior, and mastercrafted upgrade diagrams come from buying Adalbert Kermith's maps at the Blackbough merchant, Crow's Perch quartermaster, and Lindenvale's armorer.