This set consists of 3 pieces a Helmet, Chest Plate, and Leggings. This set was obtainable through the Imperial Theme Park before it was revamped. Now you get Imperial Forest Camouflage armour by doing the theme park. The only way to get this armor set is by browsing the Bazaar Terminal to see if any players have them for sale. From browsing the Bazaar here are the different variations that were listed.