Raider equipments

How Do I get the raider set for my lann? I mostly only want the tunic and pants.

Well first you need to go to visit this link: https://www.google.com/
Then do the raid and kill Glas Ghaibhleann Eradicator and pray that you get the torn pants drop (really low drop rate)
or you can buy one of the Torn pants the price range from 20-40mil depending on the Market and server.

Here's a helpful link:

Glas Ghaibhleann's Torn Pants - Loot - Vindictus DB