“These are the orthotics that have made my feet much better and the reason I have my shoes on (mostly) when I run these days... my knees are also straighter on the bike!! I just learnt today Uncle Wolfi is a fan too!!"
— Lisa Hancox, Ironman Triathlete
“The foundation that MASS4D gives cyclists is completely different. I could immediately see a better power transfer and more stable pedaling strokes while cycling. It also improves knee alignment.”
— Jack Hunter, IT Specialist
“If you’re not in pain, you’re going to play more sports and you’re going to be out on the field rather than being in because of injury. Overall, I’m very happy with the product."
— Jimmy Cratos, Marketeer