Lululemon Athletica Canada, Inc.

Michael Andrew Notrica

Mark Arthur Oleson

Christopher Ka-Yin Lam

Donald Taylor Johnston

Michael Steszyn

Peter Andrew Hudson

Peter Rueegger

Damon Clegg

Jorge Rojas

Samantha Noyes

Peter Valois

Joseph McMillan

Simon Markus Luthi

Audrey Milligan Reilly

Jeffrey Proctor

Erik Hernandez

Sean Maisano

Joseph Mcmillan

A segmented sole for an article of footwear comprises a forefoot region, a heel region, and a segmentation zone disposed between the forefoot and heel region. The segmentation zone includes a plurality of segments separated from each other and from the forefoot and heel by a plurality of sipes, cuts, or gaps. The segmented sole produces bending along a segmentation axis disposed along an arch of a wearer of an article of footwear including the sole, allowing for arch support and natural foot movement.

Segmented sole for footwear

An article of footwear may include an elastic membrane suspended within an interior of an upper of the article of footwear and spaced above the sole, such that a wearer's foot contacts the membrane and is cradled by the membrane as the membrane is stretched toward an underlying midsole. In some examples, the 5 membrane may contact the midsole for a discrete length of a contact area, e.g., selected by the manufacturer. In some examples, a void between the membrane and the sole is filled, at least in part, with a selected filler material. In some examples, the membrane comprises a material having tailored stretch characteristics.

Footwear having a suspended elastic membrane

An upper of an article of footwear comprises a plurality of stretch zones each having a respective stretching capability. Suitable example stretch zones may include four-way stretch zones, two-way stretch zones, and/or lock-out zones. In some examples, an upper having a plurality of stretch zones comprises a single continuous piece of material configured to have regions of different stretching capability. The single piece of material may comprise a layered material having two stretchable outer layers, wherein a plurality of stretch zones of the piece of material are defined by corresponding intermediate layers disposed at selected locations between the outer layers. Examples of intermediate layers providing two-way stretch, four-way stretch, and little or no stretch are disclosed.

Footwear upper comprising stretch zones

A dual-layered midsole for footwear includes an internal midsole layer and an external midsole layer, which are coupled to and separated by a Strobel board. The internal midsole layer may compress and expand with the movement of a wearer of an article of footwear including the dual-layered midsole, while the external midsole may provide stability and cushion for the wearer. Materials selected for the internal and external midsole layers may provide tuned viscoelastic properties to different areas of the midsole as a function of midsole layer thickness at each sole area.

Dual-layered midsole

Shoe

Pair of shoe soles

Growing community of inventors

Portland, OR, United States of America

Michael Andrew Notrica