this ultra-lightweight runner – our lightest ever – weighs in at just 150g

plus a thin Firm Ground sole balances barefoot sensation with grip

Brave the elements

created alongside elite athletes to glide underwater

and other sports

Primus Flow Womens Coconut colour Black this ultra-lightweight runner – ourThe Primus Flow is the newest member of the Primus family, designed for pinnacle barefoot running performance. Built for efficient and unrestricted natural movement, this ultra lightweight runner our lightest ever weighs in at just 150g. Its lightweight, breathable upper made from engineered recycled mesh forgoes overlays in favour of a stripped back, seamless construction.