Featuring a breathable mesh upper made with 100% recycled polyester

and together (matching if you like

Whether they're hiking trails or taking on the playground

created alongside elite athletes to glide underwater

Primus Flow Mens Dark Shadow colour Olive Featuring a breathable mesh upperThe 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.