Shoe with adaptive heel element

1. A shoe, comprising:

a heel portion,

an adaptive heel element arranged in the heel portion of the shoe, wherein the adaptive heel element comprises a stretch material; and

a heel counter arranged in the heel portion, wherein the heel counter comprises a lateral portion and a medial portion for supporting the heel of a wearer's foot and a posterior gap therebetween,

wherein the posterior gap forms a vertical split portion,

wherein the split portion is adapted such that the adaptive heel element can move and deform within the split portion,

wherein the adaptive heel element comprises an outer layer that includes the stretch material, and an inner layer,

wherein the outer layer comprises a cut-out having an edge that is stitched together such that the edge is joined directly to itself, wherein a portion of the adaptive heel element is pulled rearwards from an interior of the shoe by the stitched-together cut-out, and

wherein the adaptive heel element is adapted to contour to the anatomical shape of the heel of the wearer.

2. The shoe according to claim 1 , wherein the adaptive heel element is configured to contour to the anatomical shape of the Achilles tendon of the wearer.

3. The shoe according to claim 1 , wherein the top end of the vertical split portion has a width in between 20 mm and 30 mm, and wherein the bottom end of the vertical split portion has a width in between 15 mm and 25 mm.

4. The shoe according to claim 1 , wherein the adaptive heel element forms a U-shaped profile along a longitudinal extension of the adaptive heel element.

5. The shoe according to claim 1 , wherein the adaptive heel element is folded onto itself to form a dual-layer material, comprising the outer layer and an inner layer.

6. The shoe according claim 1 , wherein the cut-out is arranged in an upper half of the adaptive heel element.

7. The shoe according to claim 5 , wherein the adaptive heel element comprises a layer of reinforcement material, wherein the layer of reinforcement material is arranged in between the inner layer and the outer layer of the adaptive heel element.

8. The shoe according to claim 1 , wherein the lateral and the medial portions of the heel counter are connected via at least a joining element or are integrally formed.

9. The shoe according to claim 5 , wherein the adaptive heel element comprises at least a portion of a foamed material that is arranged in between the inner layer and the outer layer of the adaptive heel element.

10. The shoe according to claim 1 , wherein lateral and medial edges of the adaptive heel element are joined with edges of the lateral and medial sections of an upper of the shoe.

11. The shoe according to claim 10 , wherein the joining between the lateral and medial sections of the upper and the adaptive heel element is at least in part covered by the heel counter.

12. The shoe according to claim 1 , wherein the stretch material comprises a 2-way stretch material.

13. The shoe according to claim 1 , wherein the stretch material comprises a 2-way stretch circular knit sandwich mesh.

14. The shoe according to claim 1 , wherein the stretch material comprises a 4-way stretch material.

15. The shoe according to claim 1 , wherein the stretch material exhibits a stretch under a load of approximately 100 Newton, N, in longitudinal direction between 75% and 130%.

16. The shoe according to claim 1 , wherein the stretch material exhibits a stretch under a load of approximately 100 N in transverse direction of between 60% and 130%.

17. The shoe according to claim 1 , wherein the stretch material exhibits an areal density between 300 g/m{circumflex over ( )}2 and 700 g/m{circumflex over ( )}2.

18. A shoe comprising a heel counter according to claim 1 .

19. A method for manufacturing a shoe, the method comprising the steps of:

providing a heel portion;

forming a cut-out in a stretch material;

stitching an edge of the cut-out directly together to close the cut-out;

forming an adaptive heel element arranged in the heel portion of the shoe by folding the stretch material to form an outer layer and an inner layer of the stretch material, wherein the stitched-together cut-out is in the outer layer of the adaptive heel element, wherein the stitched closed cut-out shapes the adaptive heel element by causing a portion of the adaptive heel element to be pulled rearwards from an interior of the shoe; and

arranging a heel counter in the heel portion, wherein the heel counter comprises a lateral portion and a medial portion for supporting the heel of a wearer's foot and a posterior gap therebetween, wherein the posterior gap forms an essentially vertical split portion, wherein the split portion is adapted such that the adaptive heel element can move and deform within the split portion.

20. A shoe, comprising:

a heel portion,

an adaptive heel element arranged in the heel portion of the shoe, wherein the adaptive heel element comprises a stretch material; and

a heel counter arranged in the heel portion, wherein the heel counter comprises a lateral portion and a medial portion for supporting the heel of a wearer's foot and a posterior gap therebetween that defines a split portion of the heel portion,

wherein the adaptive heel element is folded onto itself to form a dual-layer material, comprising an outer layer and an inner layer,

wherein the outer layer of the adaptive heel element includes the stretch material,

wherein the outer layer further comprises a cut-out having an edge that is stitched directly together to close the cut-out such that a top portion of the adaptive heel element is pulled rearwards from an interior of the shoe,

wherein the cut-out is arranged in the upper half of the adaptive heel element,

wherein the split portion is adapted such that the adaptive heel element can move and deform within the split portion, and

wherein the adaptive heel element is adapted to contour to the anatomical shape of the heel of the wearer.