Bernhard Willhelm has worked alongside USLU Airlines in developing a line of Nail Polish, each colour inspired by a different airport throughout the world. Available now at Oak at $36 each.

gold metallic: KNO knokke/het zoute (Belgium)

red metallic: JPD heliport de paris (france)

blue metallic: GWW berlin royal air force gatow (germany)

white: KTT kittila (finland)

beige: WAW warsaw frederic chopin (Poland)

grey: SBT san bernadino airport (USA)