Dainese Super Speed 4 leather jacket. The Dainese Super Speed 4 is a strong leather motorcyclejacket for people who ride motorcycles. This jacket is made for riders who like to go fast and want to stay safe. This jacket is made by Dainese, a famous brand from Italy. Dainese has been making motorcycle clothes for a long time and used by many riders like Valentino Rossi. The Super Speed 4 is the new version of the Super Speed 3. The older jacket was already very good, but this one is even better with stronger leather, feels more comfortable, and gives more protection. The Super Speed 4 is also Triple-A certified, which means it passed very hard tests to prove it will protect you very well if you fall. Material The outside of the Dainese Super Speed-4 is made from Tutu cowhide leather. This is real leather that feels soft but is very strong. If you fall off your bike, the leather helps stop your skin from getting hurt. The racing jacket also has S1 bielastic fabric. This is a stretchy fabric that helps you move better. When you move your arms or bend your back, the fabric stretches so you don’t feel stuck. Inside the jacket, there is a soft inner liner. This inner liner helps air move inside the jacket, so you don’t get too hot or sweaty.