A shoe upper includes a mesh covering unit having opposite first and second surfaces and including a plurality offirst and second yarns, and a fabric layer disposed on the second surface. Each of the first yarns has a first core yarn, and a first coating layer wrapped around the first core yarn and made from a thermoplastic material. The first and second yarns are interknitted to form a plurality of holes extending through the first and second surfaces, and to have first portions of the first coating layers and first portions of the second yarns forming the first surface, and second portions of the first coating layers and second portions of the second yarns forming the second surface The first portions of the first coating layers at the first surface are larger in surface area than the second portions of the first coating layers at the second surface.
1. A shoe upper comprising:
a mesh covering unit having opposite first and second surfaces and including a plurality of first yarns and a plurality of second yarns, each of said first yarns having a first core yarn and a first coating layer that is wrapped around said first core yarn and is made from a thermoplastic material, said first yarns and said second yarns being interknitted to form a plurality of holes extending through said. first and second surfaces, and to have first portions of said first coating layers of said first yarns and first portions of said second yarns forming said first surface, and second portions of said first coating layers of said first yarns and second portions of said second yarns forming said second surface, said first portions of said first coating layers at said. first surface being larger in surface area than said second portions of said first coating layers at said second surface; and
a fabric layer disposed on said second surface of said mesh covering unit.
2. The shoe upper of claim 1 , wherein said thermoplastic material of said first coating layer is selected from the group consisting of thermoplastic polyurethane (TPU), thermoplastic rubber (TPR), polyethylene (PE), polypropylene (PP) and polyvinylchloride (PVC).
3. The shoe upper of claim 1 , wherein said first core yarns and said second yarns are individually selected from the group consisting of nylon yarn, polyester fiber yarn and glass yarn.
4. The shoe upper of claim 1 , wherein each of said second yarns has a second core yarn and a second coating layer that is wrapped around said second core yarn and that is made from a thermoplastic material.
5. The shoe upper of claim 4 , wherein said second coating layers have at least two colors.
6. The shoe upper of claim 4 , wherein said thermoplastic materials of said first coating layer and second coating layer are individually selected from the group consisting of thermoplastic polyurethane (TPU) thermoplastic rubber (TPR) polyethylene (PE), polypropylene (PP) and polyvinylchloride (PVC).
7. The shoe upper of claim 6 , wherein said first and second core yarns are individually selected from the group consisting of nylon yarn, polyester fiber yarn and glass yarn.
8. The shoe upper of claim 1 , further comprising a moisture-permeable waterproof layer disposed between said mesh covering unit and said fabric layer.
9. The shoe upper of claim 1 , wherein said first coating layers have at least two colors.
10. The shoe upper of claim 9 , wherein said first coating layer of each of said first yarns extends in a longitudinal direction, and said at least two colors are disposed spaced apart from each other along the longitudinal direction.
11. The shoe upper of claim 9 , wherein said at least two colors are disposed spaced apart from each other along a circumferential direction of said first yarns.