101Leafy researched the games.
Gypceros Vest

Gypceros hide makes this armor highly resistant to the Thunder element.
| Part | Body |
|---|---|
| Type | Gunner |
| Rarity | 3 |
| Defense | 16 |
| Fire Res | -1 |
| Water Res | +4 |
| Thunder Res | +6 |
| Ice Res | +3 |
| Dragon Res | 0 |
| Slots | 1 |
| Table price | 2,850z |
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 853.
Skill points
| Poison | +3 |
|---|---|
| ThunderRes | +2 |
| Stamina | +1 |
| Hunger | -1 |
Materials
Poison Sac ×1, Antiseptic Stone ×1, Rubbery Hide ×2, Machalite Ore ×2