Ice Boots are used to protect your Blockhead from harm.
A Blockhead can wear ice boots by dragging the item into the Blockhead's clothing slot for shoes. The Blockhead then takes a slightly reduced amount of damage. Ice boots will wear out naturally, but will wear out even faster when the wearer is taking damage from creatures, elements (i.e. cold or heat), or other players.
Ice armor helps to reduce a Blockhead's body temperature, making it useful for mining near the center of the world.
Ice boots resemble tin boots, but have a bluer tint. When dropped, they are somewhat translucent.