This is an iconic look. Note the brightly colored shirt adding some pizzaz to an otherwise straight forward tan/blue combo. The glasses add a bit of irony aka nerdiness.
Also note the chain protector keeps the pants from getting grease on them, or from getting ripped up.
1. Wildlife photographer John Brown (l), from Leafield in Oxfordshire, spent two years filming honeypot ants (Myrmecocystus mimicus) in the Arizonan desert for the BBC programme Natural World: Empire of the Desert Ants
