Nike Free 3.0 Flyknit 2015 Review: Flexible Sole, Sock-Like Upper, and Solid Cushioning in a Lightweight Package


The Nike Free line of running shoes was originally designed to mimic barefoot running on grass. All shoes in the line are characterized by an extremely flexible sole, and the three models vary in upper construction and the amount of sole cushioning. The Free 5.0 has the highest heel-forefoot drop and a more traditional, though […]

Nike Free 5.0 2015 Review: Yes, You Can Run in Them!


Over the past several years the Nike Free 5.0 has consistently been one of the best selling athletic shoes in the United States. Go to any school and you’re likely to see many kids sporting the flexible and colorful 5.0s. When I was in Disney World earlier this year the Free was probably among the […]

2015 Nike Free 5.0, 4.0 Flyknit and 3.0 Flyknit Released Today


One of my favorite running shoes from last year was the Nike Free 4.0 Flyknit. In fact, the 4.0 Flyknit might be my favorite Free of all-time – my only real complaint was that the lacing put a bit of pressure on the top of my foot with extended wear. In contrast to the 4.0, […]

Nike Free 4.0 Flyknit Review: The Best Nike Free Yet?


I’m going to start this review with a bold statement: the Nike Free 4.0 Flyknit is the best Nike Free shoe I have ever worn. Writing that opening line is a big deal for me because the original Nike Free 3.0 remains one of my favorite shoes of all time. That shoe was lightweight, ultra-flexible, […]

Nike Free 5.0 2014: A No-Go For Me


Update 5/18/2015: Nike has fixed the issue I had with this shoe in the newest version – view my review of the 2015 Nike Free 5.0 here. When you’re in the business of writing about running shoes, it pays to be quick about sharing thoughts on new shoe releases, particularly when the release involves one […]

The Origin of the Nike Free: Two Videos for Running Shoe Geeks


Being both a scientist and a shoe geek, I love learning about the process that goes into the design of running shoes. I’ve been a fan of the Nike Free line since the original Free 3.0, and have run in many models since. With the exception of a few lemons (e.g., Free 3.0 v4), I’ve […]

Nike Unveils the Free 5.0 v2, 4.0 v4, and 3.0 v6 for 2014


UPDATE 4/3/2014 – The 2014 Nike Free shoes are now available at Zappos and Outside of the US they can be purchased at I have also posted a full review of the Nike Free 4.0 Flyknit. Nike has officially released the new 2014 Nike Free models: Free 5.0 v2, Free 4.0 v4, and Free 3.0 v6. In […]

Nike Free 5.0 v2 2014 Photos: Is This the New Free?


Update 3/14/2014: Nike has officially introduced the 2014 Nike Free shoes. Click here for images and details on the Nike Free 3.0 v6, Free 4.0 v4, and Free 5.0 v2. While writing my Nike Free 5.0+ review earlier today I came across a notice on Nike ID that the update to the 5.0+ was coming […]

Nike Free 5.0+ Running Shoe Review


Update 3/14/2014: Nike has officially introduced the 2014 Nike Free shoes. Click here for images and details on the Nike Free 3.0 v6, Free 4.0 v4, and Free 5.0 v2. I have a fairly long history with the Nike Free line of shoes. My first step into more minimal footwear was with the Free 3.0 v1 back […]

Nike Free Flyknit Hyperfeel: The Shoe Giant Goes Ultraminimal?


In a footwear world where most companies are looking to step back a bit from ultraminimal shoes, Nike appears poised to take it’s biggest step yet toward barefoot-style footwear. A reader just alerted me to a post on about the Nike Free Flyknit Hyperfeel (thanks Joel!). It combines a woven, sock-like flyknit upper, what […]