The apparel and footwear company is now associated with one of the world's toughest ultras.
Leo Lightner started running in his 50s and now competes in marathons and ultramarathons.
He did it in a year.
He was raising money for penguin conservation.
He's planted seven million trees along the way.
They prefer 100K and 100-mile races.
Super short, really long, or somewhere in between, everyone has their favorite race distance. Let us know yours by voting in our
He had finished second in the past two years.
Scott Jurek gives advice on how to physically, mentally and nutritionally prepare for an ultramarathon.