Vivobarefoot Men's Primus Flow Knit
DESCRIPTION
Details
The Primus Flow Knit combines natural barefoot performance with adaptive comfort. A seamless 360° knit upper creates a breathable, lightweight, sock-like fit that flexes with your foot, while an unstructured heel window supports natural alignment. Textured laces and engineered lace loops deliver secure lockdown without restricting movement.
Primus Flow OutsoleReconnect and run slow
No InsoleNo insole, bringing you even closer to the ground for a greater barefoot experience.
VEGAN**The main materials in all our Vegan* products are synthetic and aren’t derived from animals. We don’t (yet) have the transparency we need over the production of all the small components (such as adhesives and dyes) used in these products to ensure they meet vegan best practices. So, whilst we believe the shoes are vegan, we’re not yet able to guarantee it and want to be fully transparent.
WEIGHTBased on a single shoe in Men's size: EU 42 | UK 8 | US 9
MATERIALS & TRANSPARENCY
UPPERUpper knit: 68% RPET, 7% Roica, 25% hotmelt. Upper TPU overlay: 60% Recycled TPU, 20% TPU, 20% Resin
LININGMesh: 100% RPET, Microfiber: 80% Recycled Polyester, 20% Polyurethane
FASTENINGLaces, 100% rPET
OUTSOLE100% TPU, Midsole: 100% EPTU
MADE IN VIETNAMCare
CleaningBrush off mud and clean with a dry cloth.
DryingDry at room temperature. Keep out of direct sunlight and avoid intense heat source.
Engineered to connect you with the ground and engage every muscle
Set on our ultra-light Primus Flow sole, the Primus Flow Knit keeps you close to the ground for pure sensory connection. From focused runs to everyday flow, connect to your body and move in the moment. But remember, barefoot running is a journey, not a race. To prevent injury, take it slow by first learning how to stand, walk and squat barefoot before attempting to run.Urban
Stripped-back soles for barefoot living — so you're never too far from nature, even in the city.
Fit, Feel, Flex
For natural stability, natural sensory feedback and natural strength.
Stye #: 309631-09 | 309631-06 | 309631-11
MENS FOOTWEAR SIZE GUIDE
| FOOT LENGTH (CM) | EU | UK | US |
|---|---|---|---|
| 24.6 - 25.5 | 40 | 6 | 7 |
| 25.6 - 26.2 | 41 | 7 | 8 |
| 26.3 - 26.9 | 42 | 8 | 9 |
| 27.0 - 27.5 | 43 | 9 | 10 |
| 27.6 - 28.2 | 44 | 10 | 11 |
| 28.3 - 28.9 | 45 | 11 | 12 |
| 29.0 - 29.6 | 46 | 11.5 | 12.5 |
| 29.7 - 30.3 | 47 | 12 | 13 |
| 30.4 - 30.9 | 48 | 13 | 14 |
| 31.0 - 31.6 | 49 | 14 | 15 |
| 31.7 - 32.3 | 50 | 15 | 16 |
| 32.4 - 33.0 | 51 | 16 | 17 |
STYLE DETAILS
Details
The Primus Flow Knit combines natural barefoot performance with adaptive comfort. A seamless 360° knit upper creates a breathable, lightweight, sock-like fit that flexes with your foot, while an unstructured heel window supports natural alignment. Textured laces and engineered lace loops deliver secure lockdown without restricting movement.
Primus Flow OutsoleReconnect and run slow
No InsoleNo insole, bringing you even closer to the ground for a greater barefoot experience.
VEGAN**The main materials in all our Vegan* products are synthetic and aren’t derived from animals. We don’t (yet) have the transparency we need over the production of all the small components (such as adhesives and dyes) used in these products to ensure they meet vegan best practices. So, whilst we believe the shoes are vegan, we’re not yet able to guarantee it and want to be fully transparent.
WEIGHTBased on a single shoe in Men's size: EU 42 | UK 8 | US 9
MATERIALS & TRANSPARENCY
UPPERUpper knit: 68% RPET, 7% Roica, 25% hotmelt. Upper TPU overlay: 60% Recycled TPU, 20% TPU, 20% Resin
LININGMesh: 100% RPET, Microfiber: 80% Recycled Polyester, 20% Polyurethane
FASTENINGLaces, 100% rPET
OUTSOLE100% TPU, Midsole: 100% EPTU
MADE IN VIETNAMCare
CleaningBrush off mud and clean with a dry cloth.
DryingDry at room temperature. Keep out of direct sunlight and avoid intense heat source.
Engineered to connect you with the ground and engage every muscle
Set on our ultra-light Primus Flow sole, the Primus Flow Knit keeps you close to the ground for pure sensory connection. From focused runs to everyday flow, connect to your body and move in the moment. But remember, barefoot running is a journey, not a race. To prevent injury, take it slow by first learning how to stand, walk and squat barefoot before attempting to run.Urban
Stripped-back soles for barefoot living — so you're never too far from nature, even in the city.
Fit, Feel, Flex
For natural stability, natural sensory feedback and natural strength.
Stye #: 309631-09 | 309631-06 | 309631-11
MENS FOOTWEAR SIZE GUIDE
| FOOT LENGTH (CM) | EU | UK | US |
|---|---|---|---|
| 24.6 - 25.5 | 40 | 6 | 7 |
| 25.6 - 26.2 | 41 | 7 | 8 |
| 26.3 - 26.9 | 42 | 8 | 9 |
| 27.0 - 27.5 | 43 | 9 | 10 |
| 27.6 - 28.2 | 44 | 10 | 11 |
| 28.3 - 28.9 | 45 | 11 | 12 |
| 29.0 - 29.6 | 46 | 11.5 | 12.5 |
| 29.7 - 30.3 | 47 | 12 | 13 |
| 30.4 - 30.9 | 48 | 13 | 14 |
| 31.0 - 31.6 | 49 | 14 | 15 |
| 31.7 - 32.3 | 50 | 15 | 16 |
| 32.4 - 33.0 | 51 | 16 | 17 |
Available Options
- Color: Skyway, Eclipse, Chocolate Truffle
- Size: 41, 42, 43, 44, 45, 46, 40