Franklin Storm fills a Minecraft cape from top to bottom, the outside matching the lining. Take the HD file or the 64x32 one, both free to grab and wear.
Free, and nothing to sign up for.
mc-capes
Killer Croc
Killer Frost
Kilowog
King Kong
King Shark
Kingpin
Klaw
Kool-Aid Man
Kraven II
Kraven the Hunter
Krypto
Kyle Rayner
Kylo Ren
Lady Deathstrike
Leader
Leech
Legion
Leonardo
Lex Luthor
Light Lass
Lightning Lad
Lightning Lord
Living Brain
Living Tribunal
Lizard
Lobo
Loki
Longshot
Luke Cage
Luke Skywalker