Whether you’re logging daily miles or crushing a gym session, the Vivobarefoot Primus Flow Knit Men's Shoes are engineered to help you rediscover how your feet were built to move.

Weighing only 161g (EU 42) per shoe, these zero drop shoes feel featherlight underfoot while offering freedom of movement and sock-like comfort. The seamless 360-degree knit upper hugs your feet like a second skin, giving you a breathable, distraction-free feel that adapts to your stride. 

Since they are free of an insole, there is no unnecessary bulk between your feet and the ground, creating a pure barefoot feel that lets your toes splay naturally for balance and stability. Anchored by an ultra-thin Primus Flow outsole, these barefoot running and gym shoes deliver improved sensory feedback and ground connection to flow between your training sessions with agility.

Key Features:

• Versatile Barefoot Training Shoes: Built as your lightweight, go-to partner for road running, gym and everyday active wear - weighing just 161g per shoe (EU 42).
• Crafted With Vegan Materials: Made from synthetic, non-animal materials. Vivobarefoot avoids a full 100% vegan guarantee because full supply-chain transparency for minor components such as dyes remains difficult to verify. 
• Zero Drop: Keeps your body aligned from heel-to-forefoot, encouraging a natural posture.
• 360-degree Knit Upper: Wraps your foot in a breathable, sock-like fit that adapts to your stride while keeping your feet cool under pressure.
• Locked-in, Unrestricted Fit: Textured laces, engineered lace loops and unstructured heel together create a secure yet natural-feeling fit.  
• Wide, Foot-Shaped Toe Box: Gives your toes the room they need to spread for natural stability.
• No Insole: Strips away unnecessary padding to bring you closer to the ground.
• 4mm Midsole: Offers a thin layer of protection, without compromising on your proprioception 
• Ultra-Thin, Primus Flow Outsole: With a purpose-built 1.4mm sole base and 0.6mm tread depth, the Primus Flow outsole keeps you firmly grounded while increasing sensory feedback and offering effortless flex with every step.

Brand : Vivobarefoot

Gender : Mens

Shoe Type : Fitness

Shoe Type : Road

Product Family : Vivobarefoot Primus

Drop : 0mm

Foot Type : Neutral

Cushioning : Barefoot

Width : Standard (Wide Toebox)

Vegan : Yes

Heel Stack Height : 6mm

Toe Stack Height : 6mm

Weight : 161g (EU 42)

Upper :

• Upper Knit : 68% RPET | 7% Roica | 25% Hotmelt
• Upper TPU Overlay : 60% Recycled TPU | 20% TPU | 20% Resin

Lining :

• Mesh : 100% RPET
• Microfibre : 80% Recycled Polyester | 20% Polyurethane

Laces : 100% rPET

Midsole : 100% EPTU

Outsole : 100% TPU