Robust cloth can be bought from the following merchants:
- Fioravanti in Flotsam's town square (also sells the diagram)
- Vilmos Bartok in Flotsam
- Sendler in Lobinden
- Mottle outside Vergen
- Myron in the Kaedweni camp (also sells the diagram)
- Relic peddler in the Kaedweni camp
- Felicia Cori in Vergen and Loc Muinne (also sells the diagram)
- Polycarp of Rinde in the Order of the Flaming Rose camp
- The Incredible Lockhart in Loc Muinne (also sells the diagram)
- Falas in Loc Muinne
It can also be crafted from a diagram and it is necessary to craft many pieces of armor. It is used to craft the following items:
- Armor of Tir na Lia
- Armor of Ys
- Armor of Ysgith
- Blasphemer's armor
- Blasphemer's boots
- Blasphemer's gauntlets
- Blasphemer's trousers
- Dearg Ruadhri
- Draug armor
- Hardened leather boots
- Kayran carapace armor
- Kinslayer's armor
- Kinslayer's boots
- Kinslayer's gauntlets
- Kinslayer's trousers
- Long robust gauntlets
- Oathbreaker's armor
- Oathbreaker's boots
- Oathbreaker's gauntlets
- Oathbreaker's trousers
- Studded leather trousers