From the playground to weekend adventures, the Vivobarefoot Primus Sport IV Preschool – Stone is built to keep busy little feet moving naturally. Lightweight, flexible and foot-shaped, these barefoot trainers help kids build strength, balance and coordination with every step.
Natural Movement for Growing Feet
Designed around Vivobarefoot’s foot-shaped, zero-drop concept, the Primus Sport IV Preschool – Stone lets kids run, jump and climb with natural posture and balance. A thin, super-flexible sole allows feet to bend and splay, encouraging healthy development and better ground feel on every surface.
Breathable, Preschool-Friendly Design
A breathable mesh upper helps keep small feet cool and comfortable through long days of play. Easy fastening and a clever tongue design make getting them on and off simple, so kids can get out the door faster and stay focused on exploring.
Key Features
- Barefoot construction: Thin, flexible sole for natural movement and sensory feedback.
- Foot-shaped fit: Wide toe box so toes can spread, grip and grow strong.
- Breathable mesh upper: Helps reduce heat and sweat for all-day comfort.
- Kid-friendly closure: Easy to adjust for a secure, stay-put fit.
- Grippy outsole: Everyday traction for playgrounds, pavements and park adventures.
- Ultra-flexible: Allows movement in all directions to support developing muscles and joints.
- Vegan-friendly: Made without animal products.
Specifications
- Brand: Vivobarefoot
- Model: Primus Sport IV Preschool
- Colour: Stone (grey)
- Style: Preschool barefoot trainers / sneakers
- Footwear type: Minimalist, zero-drop, foot-shaped design
Ideal For
Perfect for: active preschoolers who love to run, climb and explore; daycare, playground sessions, weekend adventures and everyday barefoot-style wear.
Care & Maintenance
- Brush off loose dirt after use.
- Wipe clean with a damp cloth and mild soap if needed.
- Air dry away from direct heat sources.
- Do not machine wash or tumble dry.
- If your child is new to barefoot shoes, build up wear time gradually to let their feet adapt.
Vivobarefoot Kids Size Chart
Ensure a perfect fit for growing feet with AdventureCo’s Vivobarefoot size guide for toddlers, kids, and juniors—plus tips for natural fit and return reassurance.
How to Check Fit
Vivobarefoot intentionally fits on the larger side—allowing toes to splay naturally. You’ve likely got the right size if you can easily fit a thumb between your child’s longest toe and the front of the shoe. As feet grow and toes splay, sizes may increase over time.
You can return unused shoes within 365 days for a full refund or store credit. No stress—just the right fit!
Toddler Size Guide
| Foot Length (cm) | EU | UK | US |
|---|---|---|---|
| 12.7 | 20 | 4 | 5 |
| 13.4 | 21 | 4.5 | 5.5 |
| 14.1 | 22 | 5 | 6 |
| 14.7 | 23 | 6 | 7 |
| 15.4 | 24 | 7 | 8 |
Kids Size Guide
| Foot Length (cm) | EU | UK | US |
|---|---|---|---|
| 16 | 25 | 8 | 9 |
| 16.7 | 26 | 8.5 | 9.5 |
| 17.4 | 27 | 9 | 10 |
| 18.1 | 28 | 10 | 11 |
| 18.7 | 29 | 11 | 11.5 |
| 19.4 | 30 | 11.5 | 12 |
| 20.1 | 31 | 12 | 13 |
| 20.7 | 32 | 13 | 1 |
Junior Size Guide
| Foot Length (cm) | EU | UK | US |
|---|---|---|---|
| 21.3 | 33 | 1 | 2 |
| 22 | 34 | 2 | 3 |
| 22.8 | 35 | 3 | 4 |
| 23.5 | 36 | 3.5 | 4.5 |
| 24.2 | 37 | 4.5 | 5.5 |
| 24.9 | 38 | 5 | 6 |
From the playground to weekend adventures, the Vivobarefoot Primus Sport IV Preschool – Stone is built to keep busy little feet moving naturally. Lightweight, flexible and foot-shaped, these barefoot trainers help kids build strength, balance and coordination with every step.
Natural Movement for Growing Feet
Designed around Vivobarefoot’s foot-shaped, zero-drop concept, the Primus Sport IV Preschool – Stone lets kids run, jump and climb with natural posture and balance. A thin, super-flexible sole allows feet to bend and splay, encouraging healthy development and better ground feel on every surface.
Breathable, Preschool-Friendly Design
A breathable mesh upper helps keep small feet cool and comfortable through long days of play. Easy fastening and a clever tongue design make getting them on and off simple, so kids can get out the door faster and stay focused on exploring.
Key Features
- Barefoot construction: Thin, flexible sole for natural movement and sensory feedback.
- Foot-shaped fit: Wide toe box so toes can spread, grip and grow strong.
- Breathable mesh upper: Helps reduce heat and sweat for all-day comfort.
- Kid-friendly closure: Easy to adjust for a secure, stay-put fit.
- Grippy outsole: Everyday traction for playgrounds, pavements and park adventures.
- Ultra-flexible: Allows movement in all directions to support developing muscles and joints.
- Vegan-friendly: Made without animal products.
Specifications
- Brand: Vivobarefoot
- Model: Primus Sport IV Preschool
- Colour: Stone (grey)
- Style: Preschool barefoot trainers / sneakers
- Footwear type: Minimalist, zero-drop, foot-shaped design
Ideal For
Perfect for: active preschoolers who love to run, climb and explore; daycare, playground sessions, weekend adventures and everyday barefoot-style wear.
Care & Maintenance
- Brush off loose dirt after use.
- Wipe clean with a damp cloth and mild soap if needed.
- Air dry away from direct heat sources.
- Do not machine wash or tumble dry.
- If your child is new to barefoot shoes, build up wear time gradually to let their feet adapt.
Vivobarefoot Kids Size Chart
Ensure a perfect fit for growing feet with AdventureCo’s Vivobarefoot size guide for toddlers, kids, and juniors—plus tips for natural fit and return reassurance.
How to Check Fit
Vivobarefoot intentionally fits on the larger side—allowing toes to splay naturally. You’ve likely got the right size if you can easily fit a thumb between your child’s longest toe and the front of the shoe. As feet grow and toes splay, sizes may increase over time.
You can return unused shoes within 365 days for a full refund or store credit. No stress—just the right fit!
Toddler Size Guide
| Foot Length (cm) | EU | UK | US |
|---|---|---|---|
| 12.7 | 20 | 4 | 5 |
| 13.4 | 21 | 4.5 | 5.5 |
| 14.1 | 22 | 5 | 6 |
| 14.7 | 23 | 6 | 7 |
| 15.4 | 24 | 7 | 8 |
Kids Size Guide
| Foot Length (cm) | EU | UK | US |
|---|---|---|---|
| 16 | 25 | 8 | 9 |
| 16.7 | 26 | 8.5 | 9.5 |
| 17.4 | 27 | 9 | 10 |
| 18.1 | 28 | 10 | 11 |
| 18.7 | 29 | 11 | 11.5 |
| 19.4 | 30 | 11.5 | 12 |
| 20.1 | 31 | 12 | 13 |
| 20.7 | 32 | 13 | 1 |
Junior Size Guide
| Foot Length (cm) | EU | UK | US |
|---|---|---|---|
| 21.3 | 33 | 1 | 2 |
| 22 | 34 | 2 | 3 |
| 22.8 | 35 | 3 | 4 |
| 23.5 | 36 | 3.5 | 4.5 |
| 24.2 | 37 | 4.5 | 5.5 |
| 24.9 | 38 | 5 | 6 |
15,000+ Reasons to Give Us a Try
At Adventureco, we stand behind every product we sell. That’s why you’re covered by our 365-Day Return Policy — with free returns within Australia.
Not the right fit? Changed your mind? No worries. Return your gear in unused condition within 365 days for a full refund or store credit — no fuss, no pressure.
Trusted for 9+ years and over 15,000 orders delivered. Shop with confidence, the adventure is guaranteed.