Protogen mask! (His name is Levi) by Horseflythehivewing on DeviantArt

Protogen Mask Version 2.0 Minecraft Texture Pack

Pricing Tiko Wolf Protogens

Protogen but cat on X: Protogen says, wear a mask / X

RF_protogen face test

Protogen Clone by FauvFox on DeviantArt

Flowfell on X: Love the idea of a removable protogen mask on an oc, this sheet was so much fun to draw ^_^ / X

Protogen Mask - PAYDAY 2 Mods - ModWorkshop

Protogen Visor Study by SadStrawberryArts -- Fur Affinity [dot] net

Base kits

Protogen Fursuit Head Template Digital PDF Pattern for DIY - UK