Vestment Robes are prayer sets aligned to one of six major gods of Etherum. The pieces to this set offer a decent prayer bonus, so that you're prayer is depleted much slower than normal when they are equipped. This can be handy if you do not want to use as many prayer potions. The Guthix robes are god robes with the green trim.

The Guthix Vestment set is made up of:

Guthix Crozier
Guthix Cloak
Guthix Mitre
Robe top
Guthix Robe legs
Guthix Stole

The Mitre, Robe Top, and Robe Legs can be sold back to the Pure PKP Store in Edgeville, you will get 1k PkP for the Mitre and 1.5k for the Robe Top and Legs

Obtaining the pieces

Clue Scrolls

Each item is obtained from a different leveled clue scroll. The robe top, robe legs, and mitre can be rewarded from medium clue scrolls. The stole and crozier can be rewarded from hard clue scrolls.

The Cloak however, is not currently in the game.