Octoleet Boots
From Inkipedia, the Splatoon wiki
The Octoling Boots are shoes in Splatoon. It is 2-star rarity produced by the Cuttlegear clothing brand and comes with the main ability, Special Saver.
It cannot be purchased: it must be won by playing Hero Mode with the Squid Girl amiibo.
Appearance
Abilities
The Octoling Boots comes with the Special Saver ability as a main ability.
Unlock
Complete these 4 missions the Amiibo gives you to unlock it: