Zumer Sport is a brand that celebrates sports. Zumer Sportauthentic “basketball leather” was the first material they developed, and took years of trial & error and testing to find the right process to create the products you now see. It is the same material that basketballs are made from, and Zumer Sport refers to it as “basketball leather”. Is it animal skin? Of course not! Over 90% of all basketballs are made from proprietary blends of synthetic materials. Zumer Sport is no different. It’s the same synthetic leather that is used to make actual basketballs. It feels and looks like a real basketball because it is! While the actual formulation is a closely guarded secret, it is generally a urethane-based synthetic leather.they are the only brand in the world that takes the materials from different sports balls, and uses it to create incredible products that are both useful and fun; of the highest quality and affordable. they Create lifestyle products made from actual sport ball materials. From backpacks to duffel bags, drawstring bags to wallets...