Upgrading your armor in Monster Hunter Wilds is crucial for tackling tougher challenges. Armor Spheres are the key to this upgrade process. Here's how to obtain and utilize them:
Acquiring Armor Spheres
Armor Spheres are primarily earned as quest rewards in Monster Hunter Wilds. Both main and optional quests offer them. You'll begin receiving Armor Spheres after defeating Uth Duna for the first time. Subsequent main and optional quests, especially those unlocked after this point, will frequently include Armor Spheres in their reward pools.
To see what rewards a quest offers, open your journal, select the quest, and press R1 (or the equivalent button on your platform) to view the rewards list. Your rewards will be displayed after a successful hunt.
Farming Armor Spheres is relatively straightforward. Progressing through the main story will naturally yield a good supply, but completing optional quests significantly boosts your acquisition rate.

Utilizing Armor Spheres
Armor Spheres are essential for upgrading your armor. At the base camp, speak to Gemma the smithy. Choose the option to forge or upgrade armor. Select an already crafted piece of gear and press R1 to access the Upgrade tab.
From there, choose the item you wish to upgrade. You'll need to provide Armor Spheres and Zenny to complete the upgrade. Be aware that the cost increases with each subsequent upgrade level.

That’s how to acquire and use Armor Spheres in Monster Hunter Wilds. For more Monster Hunter Wilds guides and tips, check out The Escapist.