To celebrate a decade of Nike Free, Nike released the Free Flyknit 3.0 SP 'Genealogy of Free' in the summer of 2014 along with other landmark models that defined the collection. Featuring a sock-like fit, this pair cradles the foot with a woven upper that include a snug, rib-knit collar. Flywire cables are integrated with the laces for strong yet lightweight support and stability, and the deep sipes of the Nike Free outsole offer a flexible feel like bare feet.