For a Modrinth description, you can use something like this:

Invisible Gear

Invisible Gear is a lightweight Minecraft resource pack that hides all armor textures while preserving their functionality. Enjoy a cleaner screen, better visibility, and a more immersive gameplay experience without sacrificing protection.

Features

• All armor sets are fully invisible
• Works in Survival and Multiplayer
• No gameplay advantages or stat changes
• Lightweight and performance-friendly
• Compatible with Minecraft 1.21+

Perfect For

• PvP players who prefer an unobstructed view
• Content creators and screenshot enthusiasts
• Players who enjoy seeing their skin without armor covering it
• Minimalist resource pack setups

Notes

This pack only changes armor visuals. Armor durability, enchantments, protection values, and all other mechanics remain unchanged.

See your skin. Keep your protection.