From the study found: Nike laboratory training can effectively strengthen barefoot foot and leg ministry muscle activity, arouse human athletic performance. NIKE FREE RUN + 2 men grey royal_blue this brand-new running shoes gives runners more comfortable, more flexible wearing feeling. More colour collocation, also give running fans provided more choice. Nike Free Run+ 2 also support with NIKE + chip Sportband, iPod equipment link, instant feedback running distance, time, calorie expenditure etc material, make running scores and self training effect take in everything in a glance.
Nike Free Run Running Benefits- Inner-sleeve for a snug, barefoot-like fit- One-piece, patterned overlay for support and flexibility - Flex grooves for flexibility and stability- Weight: 8.4 ounces (men's size 10)
Nike Free Run Running FitThis shoe's inner-sleeve, or bootie, conforms to your foot for a snug and comfortable, barefoot-like fit-with or without socks. Extensive, breathable