Moisture barrier treatments protect without sacrificing breathability
The 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 the lightest ever weighs in at just 150g. Its lightweight, breathable upper made from engineered recycled mesh forgoes overlays in favor of a stripped-back, seamless construction.Shear thickening fluid in collars stiffens during sudden impacts
