Product descriptions from the supplier ISO 20344 5.15.2 Standard Compliance: Tests the dynamic waterproof performance of various types of finished shoes according to ISO 20344 5.15.2, providing a recognized method for footwear water resistance evaluation. Walking in Water Simulation: Places the shoes on the machine with the footwear contacting water in the tank, then drives the rear of the footwear to bend at a set angle and frequency to simulate a person walking in water.