This second version of the Spectur differs from the original by having a much more cushioned feel, as well as being lighter and having a drop that's 2 mm higher than before - this helps even casual runners direct their motion forwards. - Heel to toe drop: 8 mm - Reverse Camber design helps move quickly from landing to push-off - shorter ground contact time - Energy Foam cushion - Energy Blade fiberglass plate in the midsole completes the structure suitable for fast running - Ergonomic EVA insoles - Highly breathable surface fabric - Road Contagrip outsole provides good grip and is durable