Since the forefoot upper isconcave and curved during walking, it is easy to produce and deepen the wrinkles to affect the overall beauty.For this reason,we have introduced ashoe shield. It can beinserted into the shoe as walking shoe support, keeping the upper flat and not easy to wrinkle CUTTABLE: 1/2 Shoe size larger than true foot size for comfortable feel; With auxiliary cutting lines, can be freely trimmed according to the size required. Even if it is not worn for a long time, it is recommended that youplace the shoe shield inside the shoe as a support protection. Features: