Good idea! I find that many times we shouldn't be 100% innovative, if we can't accept the innovative ideas of other colleagues so that we can apply them in another area or sector, and be able to improve and help us all together.
At the same time speaking directly about the idea, I find it great to be able to apply the Nike Grind on weights and training products. But beyond the aesthetics, and the raw material, do you have any improvement for the health status for the person who trains? I mean, is there any advantage over other similar products?