OptiFine on X: "Website is back up, and broken capes should be fixed. There is also a new "Banners" tab where you can view the most popular OptiFine banner cape designs currently.
GUIDE] OPTIFINE CUSTOM CAPES | Hypixel Forums
Create a Custom Optifine Capes Tier List - TierMaker
Capes - OptiDocs
☯ Optifine Cape - Banners ☯ | Badlion
Capes - OptiDocs
How to Get a Cape in Minecraft: 3 Steps (with Pictures) - wikiHow