This pair of socks is inspired by the most cheerful & colorful illustration scientist Ernst Haeckel has left us! As a zoologist he must have been extremely fascinated by the out-of-this-world features of the Trochilidae, better known as Hummingbirds. Stepping into these socks means stepping into the Hummingbird Kingdom created by Haeckel. You’ll surround yourself by the smallest bird in the world, capable of flying backwards as well as forwards, even able to hover in mid-air. Although the illustration suggests a place full of hustle and bustle, don’t be fooled. Due to their rapid wing flapping (up to 80 per second) they need to rest most of the time to store their energy.