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the sole material of these shoes is a non-marking rubber outsole with a foam sole with embedded cushioning system in the rubber. the sneaker features an upper, shape and detailing, with an upper overlay that provides better support and durability for your feet. the design of the ventilation holes in the shoe improves the air circulation inside the shoe to help keep feet dry and comfortable at all times. in the process of making rubber, carbon fiber material or carbon elemental powder is added. this rubber is wear-resistant and has good grip the rubber outsole is very flexible in our test process, it can be twisted to a great extent, which virtually increases its anti-deformation ability, strong plasticity,.syi