Nike Free 3.0 V4

Experience barefoot running with the Nike Free 3.0 V4. To promote a more natural foot movement, the Free 3.0 has deeply cut flex grooves throughout the midsole to create a ultra flexible platform that does restrict foot natural flex. With its feather-like weight and sock-like shoe upper comfort, it is the best trainer for bare-foot like running without sacrificing much impact cushioning. ( Updated Model : Nike Free 3.0 v5 )

MSRP : US$100
Weight : 7.0 oz / 198 gm
Predecessor : Free 3.0 V3
Product Cycle : RY.2012.→DY.2013 Mar.
Features : Style : Gender Specific : Upper : Seamless Stretchy Mesh, Asymmetircal Lacing, Dynamic Fit System, Molded sockliner, Strobel Last : Midsole : Phylite™ Midsole, Nike Free Sipes, Transtarsal Flex Grooves : Outsole : BRS 1000™

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A "Minimalist" trainer for fast running, racing or foot strengthening with minimum features.

History : Free 3.0 Series : V4('12), V3('11), V2('10), V1('09)

Asymmetrical Lacing : Lace is shifted towards the lateral side of the foot to help reduce pressure over the top ridge of the foot for enhanced comfort and better fit.

BRS 1000™, Rearfoot : A highly durable carbon rubber we invented for use in out-soles. BRS stands for Blue Ribbon Sports, which was our name before we came up with Nike. The tie-in? Both BRS and Nike last ... and last...

Molded Sockliner : Underfoot inserts which are molded based on the curvature of the foot for a closer fit, to provides additional cushioning and comfort.

Nike® Free Sipes : A gender-specific flex grooves midsole cut to produced a barefoot-like flexibility while maintaining stability.

Phylite™, Midosle : Nike's lightweight mid-sole material designed for a resilient ride with enough durability to double as an out-sole.

Seamless Stretchy Mesh : A engineered smealess upper with laser-perforated design with stretchy mesh innersleeve to provide a supportive, skin-like fit that moves with each stride.

Stroble Last : The upper is attached to a thin material that is patterned on the shape or silhouette of the midsole. Traditional strobel lasts use a thin cloth material, while newer variations use a thin sheet of EVA for a more cushioned feel.

Transtarsal Flex Grooves : Deep cuts flex grooves which runs diagonally under the midfoot area for increased flexibility and mobility to increase foot strength.