The Donnastreet tyres are based on the massive success that BSD has had with their Donnasqueak tyres. The rubber compound is still the tried and tested compound from the Squeaky tyres but instead with an all over smoother tyre tread for more grip, whereas the sides on the tyre-walls are more round which provides a better tyre for grind tricks.
The tyres have a smooth centre that lowers the overall rolling resistance. The casing is made with the BSD Silkworm material that is tear resistant.