Inflatable protective boots are patented and expensive. Inflatable protective boots are rehabilitation equipment, so the price is more expensive than ordinary products.
Boots are a kind of slightly cylindrical shoes, which are above the ankle bones. According to legend, the inventor of boots was Sun Bin, a famous strategist in the Warring States Period. In order to commemorate Sun Bin, shoemakers in the old days regarded him as the ancestor of the footwear industry, set up memorial tablets and hung portraits to worship him. Nowadays, it is deeply loved by women.