Upgrade Windproof Charm through three ranks and it tops out at Windproof Lv3. The first rank costs 1,500z to craft, every rank after that is an upgrade. Some of the materials only come from Congalala, Guardian Doshaguma, Guardian Rathalos and three more monsters.
Rank by rank
Windproof Charm IRarity 4
Windproof Lv1: Negates minor wind pressure and halves the effects of major wind pressure.
Craftable · 1,500zWindproof Charm IIRarity 5
Windproof Lv2: Negates minor and major wind pressure and halves the effects of dragon wind pressure.
Upgrade from previous rank · 3,000zWindproof Charm IIIRarity 6
Windproof Lv3: Negates all kinds of wind pressure.
Upgrade from previous rank · 6,000z