In some embodiments, a shoe assembly comprises a vamp and a sole. The vamp includes a middle section, and the vamp and the middle section are formed of a continuous piece of a first molded material. The vamp also includes a first aperture and a second aperture. The sole includes a forefoot section and a heel section that are joined by a midfoot section. The forefoot section, the heel section, and the midfoot section are formed of a continuous piece of a second molded material. The second molded material is an EVA-based material. The first aperture of the vamp receives a part of the forefoot section and the second aperture receives a part of the heel section. When the shoe assembly is placed on a flat surface, the forefoot section is in direct contact with the flat surface.