This is a grain leather that has been slightly brushed on the surface to create a very fine velvet-like appearance. The texture of nubuck is finer than suede.
About Running Shoes:
Running Shoes are footwear designed for maximum support and comfort for runners. Running Shoes often feature extra cushioning to absorb impact from the surface running upon. Running Shoes may also feature comfort technology consisting of all types of support and antibacterial linings.