Key changes to the Rider in this 16th Edition include a drop in weight from 300 to 283 Grams. A fantastic reduction for the series, especially while it manages to maintain and even enhance the cushioning and stability. This has been achieved partly through an upper re-construction which sees several overlays removed to offer greater freedom in the forefoot as well seeing the meshing developed finer, to work superbly with the honeycombing of Mizuno"s Intercool technology to give the runner even more breathability with an internal structure that conforms better to your running stride, improving both fitting and comfort. SR Touch is the new heel cushioning technology which replaced VS-1 as a lighter yet softer and less dense compound, which gives you better impact resistance upon heelstrike.