The Nike Free hasn't changed much in the almost decade its been around, but this year it got an upgrade with Nike's latest and greatest technology, Flyknit. People like to wear Nike Frees without socks, and this idea was translated to the Free Flyknit, and the sneaker had a sock-like appearance and was designed to bring the shoe closer to the wearer's foot. The Flyknit design made it look futuristic but still brought the simplistic element of knitting that the technology represented.