The GB/T 3903.1 - 2008 standard specifies a general test method for the flexural performance of footwear. It covers the specific specifications of the testing equipment, such as the requirements of the flexural testing machine, detailing the operation steps, that is, to subject the footwear sample to repeated bending under specific conditions. Bending resistance is related to the ability of performance shoes to cope with frequent bending in daily wear, and is a key indicator of the mass of footwear. According to this standard, manufacturers can effectively test products to ensure that the footwear is durable, reduce damage caused by bending, and protect the consumer's wearing experience and product service life.