PROBLEM TO BE SOLVED: To propose a new shape memory form The shape-memory foam 20 has a function of memorizing a shape depending on temperature, and a porous shape-memory polymer 21 and air-tightness and stretchability which cover the shape-memory polymer in a state of being in close contact with the shape-memory polymer 21. And a at least one circulation port 23 provided in the film 22 and opened in a space 22a covered with the shape memory polymer 21. [Selection diagram] Figure 1
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