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 – 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. The Primus Flow features an innovative 4mm midsole made entirely from low-density ETPU that’s designed to reduce the risk of injury without sacrificing proprioception. However, remember that barefoot running is a journey, not a race. To prevent injury, take it slow – learn how to stand, walk and squat barefoot first before attempting to run. Urban: - Stripped-back soles for barefoot living — so you´re never too far from nature, even in the city. Primus Flow Outsole: - The new Primus Flow outsole is a super lightweight 150g, crafted for speed and agility on runs. It delivers flexibility and grip, empowering stronger feet through a purposeful design that keeps you connected to the ground for more mindful running. Fit: - Foot-shaped fit enables toes to splay improving balance and providing a stable base of support. Feel: - Thin sole allows the thousands of nerve endings in each foot to provide the brain with sensory feedback it needs to move with skill. Flex: - Flexible footwear allows the muscles and tendons to load and recoil enabling your feet to get stronger for a natural spring in every step. Features: - Primus Flow Outsole: Reconnect and run slow - No Insole: No insole, bringing you even closer to the ground for a greater barefoot experience. - Breathable Mesh: Breathable, lightweight and comfortable. Specifications: - Weight: 159 g Composition: - Upper: 100% recycled polyester jacquard - Lining: Unlined - Laces: 100% recycled polyester - Outsole: Midsole: ETPU (4mm), Outsole: 100% TPU (2mm) Care: - Cleaning: Brush off mud and clean with a damp cloth. - Drying: Remove insole and dry at room temperature. - Keep out of direct sunlight and avoid putting on a radiator.