101Leafy researched the games.
Narga Leggings S

Leggings as dark as night. Frightening as the one who runs through the shadows.
Armor made from materials of Nargacuga, the "Swift Wyvern." The wearer is said to gain Nargacuga's physical abilities, and as the name "Swift Wyvern" suggests, they can move lightly and quickly. Its build is slimmed down to the minimum, so attack drops slightly, but the benefits more than make up for it.
Our translation of 復刻 ハンター大全 (KADOKAWA / Enterbrain, 2014), page 204.
| Part | Leg |
|---|---|
| Type | Gunner |
| Rarity | 6 |
| Defense | 30 |
| Fire Res | -2 |
| Water Res | +4 |
| Thunder Res | -1 |
| Ice Res | +3 |
| Dragon Res | +1 |
| Slots | 2 |
| Table price | 10,250z |
Listed in the equipment tables of モンスターハンターポータブル 2nd G 公式ガイドブック (Enterbrain, 2008), page 884.
Skill points
Materials
Black Narga Pelt ×4, Narga Scale+ ×3, Nargacuga Fang+ ×4, Remobra Skin+ ×4