In black with yellow contrast heels and toes, and with cute little woven character badges at the tops taken straight from Despicable Me 3 and declaring I didn't do it our official SOCKSHOP Heat Holders Jailbird Minions Slipper Socks are here to keep your own miniature reprobates warm, no matter what mischief they are getting up to around the house. They even have the same team Gru logos that the Minions wear on their dungarees printed on the soles, creating anti-slip treads to keep kids safe as they rampage around. But how do Heat Holders keep feet warm? Well, imprisoned along with the Minions is all the warm air that the body naturally outputs, jailed in the long, fluffy brushed fibres inside the socks to keep feet warmer for longer. That's an idea almost clever enough for mastermind Gru himself!