MSRP : US$95
Weight : 7.8 oz / 220 gm
Predecessor : Free 4.0 v2
Product Cycle : RY.2013.→DY.20XX.
Features : Style : Gender Specific : Upper : Free Specific Mesh, Molded Sockliner, Strobel Last : Midsole : Phylite™ Midsole, Free Sipes, Transtarsa Flex Grooves : Outsole : BRS 1000™, Waffle™ Lugs
: | A "Minimum Performance" trainer designed for fast pace daily training and racing with minimum features. |
History : Free 4.0 Series : v3('13), v2('12), v1('12) |
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…
Free Specific Mesh : A smealess design for breathable and barefoot comfort.
Free Sipes : A gender-specific flex grooves midsole cut to produced a barefoot-like flexibility while maintaining stability.
Molded Sockliner : Underfoot inserts which are moulded based on the curvature of the foot for a closer fit, to provides additional cushioning and comfort.
Phylite™, Midsole : Nike's lightweight mid-sole material designed for a resilient ride with enough durability to double as an out-sole.
Strobel 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.
Waffle™ Lugs, Forefoot : Rubber sole compound for enhanced traction.
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