A player wearing frog-leather armour.
Frog-leather armour (also known as Frog-skin armour) is a Ranged armour made by the Dorgeshuun goblins. Frog-leather armour is members-only, and players must have level 25 Ranged and level 25 Defence. This armour is bought from Reldak in Dorgesh-Kaan. This armour is commonly worn by Frogiate pures who will typically have level 25 defence, Frogiate pures are usually the cut off point for most pure clans and the Frog-leather body offers superior bonuses to a studded body, most importantly magic defence and a higher range bonus.
Although they are not a particularly war-like race, the Dorgeshuun see the value of their skills and are not completely against fashioning armour to fit the humans that come to visit their city.
Zanik appears to be wearing this armour set, most likely because she lives in Dorgesh-Kaan and is a ranger.