Shoe

A shoe comprising:

• a flexible shell having an internal space configured to receive a foot of a wearer;
• and
• a sole body accommodated in the shell and supporting a sole of the foot of the wearer, wherein
• the shell includes a bottom wall portion and a peripheral wall portion erected from a peripheral edge of the bottom wall portion,
• the bottom wall portion and a portion of the peripheral wall portion adjacent to the bottom wall portion define a lower space of the internal space in which the sole body is disposed, and a portion of the peripheral wall portion located above the portion adjacent to the bottom wall portion defines at least a portion of an upper space of the internal space that is configured to receive the foot of the wearer, and
• the bottom wall portion covers a lower surface of the sole body and has an external surface configuring a tread of the shoe.