To provide a shape retaining material which is a retaining material comprising a resin, has sufficient shape retaining properties capable of rataining a deformed shape, easy to discard, easy to reuse the resin after discarding and is excellent in productivity, a nose clip for a face mask using the shape retaining material and the face mask.

This shape retaining material has at least a strip-like material comprising a stretched polyolefinic resin with a rolling ratio of 5-16 times, a draw ratio of 1.3-2.5 times and the total draw ratio of 10-40 times.