101Leafy researched the games.
Lava Leggings X

Designed to help give weight to your counter-attacks. The crafting is brilliant.
High-grade armor that only those who have defeated Lavasioth, the "Lava Wyvern," may wear. Lavasioth swims freely through magma, so armor made from its heat-resistant scales and shell stays reliably strong whatever the surroundings. Only a small part of the face is left open, and the narrow view is a worry, but hunters say it actually helps them focus.
Our translation of 復刻 ハンター大全 (KADOKAWA / Enterbrain, 2014), page 197.
| Part | Leg |
|---|---|
| Type | Gunner |
| Rarity | 9 |
| Defense | 46 |
| Fire Res | +5 |
| Water Res | -1 |
| Thunder Res | +2 |
| Ice Res | +2 |
| Dragon Res | +2 |
| Slots | 1 |
| Table price | 16,100z |
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 925.
Skill points
| Terrain | +5 |
|---|---|
| Guts | +1 |
| ShortCharg | +3 |
| MixSucRate | -2 |
Materials
HvyLavasiothShl ×3, SpecLavasioFin+ ×1, ThckLavasiothScl ×4, Ioprey Hide+ ×5