The product design arm of the famous car company Porsche have teamed with shoemaker Puma to design the 3D MTRX sneakers, which feature a 3D printed midsole.
Using AM technology allowed them to create a super complex geometry, out of what looks like some sort of TPU rubber, and they say it’s design means every time the foot hits the ground, it’s transformed into horizontal movement, so up to 83% of energy expended can be reused, increasing running performance.
That could just be marketing hype, but it is interesting to see how these grid structure designs reduce weight without apparently reducing comfort or performance.