In this month's edition of the Aid Station, Zoë Rom reflects on traveling (and running) in rural Portugal for a couple of weeks, ultimately discovering Kurt Vonnegut's lesson for ultrarunners.

From running local races to donating worn-out shoes, runners can make more sustainable decisions. This list is a fun place to start!

We runners go through a lot of gear—shoes, shorts, shirts, bras, hats—which puts us deep within a system with a sizeable environmental footprint. When it’s time for new gear, how do you make a sustainable choice?