My dear friend Denise McKenzie goes by the twitter handle Spatial Red (she does have a penchant for clothing in that colour). We met up recently at Geovation and she was wearing this superb map shirt which I think is based on a street map of Paris.
I love the idea of clothing items that have simple black and white map designs, somewhere I have a t-shirt with a zoomed out map of London based on OSM data, I’ll have to dig it out and pose for a #MapsintheWild selfie.
