Vacuum transform upper for article of footwear
An adjustment element for an article of footwear includes a bladder having a barrier layer defining an interior void and a compressible component disposed within the interior void and including a lattice structure defining a plurality of reliefs formed in the lattice structure, the compressible component operable between an expanded state when the interior void includes a first pressure and a contracted state when the interior void includes a second pressure.
1. An adjustment element forming an upper of an article of footwear, the adjustment element comprising:
a bladder including a barrier layer defining an interior void; and
a compressible component disposed within the interior void and including a foam lattice structure defining a plurality of reliefs formed in the lattice structure, a first plurality of the reliefs operable to contract in a first direction in a forefoot region of the upper and a second plurality of the reliefs operable to contract in a second direction in a mid-foot region of the upper, wherein the compressible component operates between an expanded state when the interior void includes a first pressure and a contracted state when the interior void includes a second pressure less than ambient pressure.
2. The adjustment element of claim 1 , wherein reliefs of the plurality of reliefs are parallelogram-shaped and extend through a thickness of the compressible component.
3. The adjustment element of claim 1 , wherein the lattice structure defines a first adjustment zone including the first plurality of reliefs oriented in the first direction and a second adjustment zone including the second plurality of reliefs oriented in the second direction different from the first direction.
4. The adjustment element of claim 1 , further comprising a port connected to the barrier layer and providing fluid communication between the interior void and a variable pressure source.
5. The adjustment element of claim 1 , wherein the first pressure is equal to or greater than ambient pressure.
6. The adjustment element of claim 1 , wherein the adjustment element includes an interior seam separating the bladder into a first chamber and a second chamber.
7. An article of footwear comprising:
a bootie defining an interior void, and
an adjustment element attached to the bootie and including a bladder having a barrier layer defining an interior void and a compressible component disposed within the interior void, the compressible component including a foam lattice structure defining a plurality of reliefs formed in the lattice structure, a first adjustment zone including a first plurality of the reliefs oriented in a first direction and operable to contract in the first direction in a forefoot region, and a second adjustment zone including a second plurality of the reliefs oriented in a second direction different from the first direction and operable to contract in the second direction in a mid-foot region, wherein the compressible component operates between an expanded state when the interior void includes a first pressure and a contracted state when the interior void includes a second pressure less than ambient pressure.
8. The article of footwear of claim 7 , wherein reliefs of the plurality of reliefs are parallelogram-shaped and extend through a thickness of the compressible component.
9. The article of footwear of claim 7 , further comprising a port connected to the barrier layer and providing fluid communication between the interior void and a variable pressure source.
10. The article of footwear of claim 7 , wherein the first pressure is equal to or greater than ambient pressure.
11. The article of footwear of claim 7 , wherein the adjustment element includes an interior seam separating the bladder into a first chamber and a second chamber.
12. The article of footwear of claim 7 , wherein the bootie is exposed along a throat region of the article of footwear.