5 Findings From A Time Machine

Heeluxe’s Time Machine rapid durability test recently celebrated its 30 millionth step. To celebrate the occasion, here’s a list of the 5 most valuable things we have learned from testing the durability of 100’s of shoes.    Upper Durability is as important as outsole/midsole durability. In the last 5 years we’ve seen uppers made out…

Why Energy Return is a Myth

Energy Return is a hot topic in athletic footwear and has even impacted occupational, fashion, and casual shoes. Current foam materials like Boost and EverRun and carbon fiber technologies like the VaporFly 4% and VKTRY insoles promote improved energy return, but is there any science to back this up? Let’s find the truth about energy…