Flippers are a rare drop from mogres, which require 32 Slayer and completion of Skippy and the Mogres to obtain. They are worn in the footwear slot and allow players to use 'run' while in the underwater area beneath Fossil Island. They are occasionally worn with the mudskipper hat.
Dropping monsters
Monster Combat level Quantity Rarity Mogre 60 1 Uncommon (1/64)