








TEACH THEM TO THINK OUTSIDE OF THE BOX
BUILT FOR INDEPENDENT MINDS
The Primus Ludo School is for kids who are learning to stand on their own two feet. This barefoot trainer in uniform-friendly black leather builds on our bestselling Primus School to give kids more independence. Designed with a tongue rather than a sock collar for an adjustable fit that feels snug on narrow and wide feet, plus fixed flat elastic laces and a Velcro strap to help kids pull them on and off easily. Made from soft, durable leather with a breathable lining for all-year wear. Created with autistic and neurodiverse communities front of mind.
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.
Get the Right Fit the First Time
We want to make sure you pick the perfect size when ordering online. That’s why we’ve created clear, easy-to-use size charts for every Vivobarefoot product.
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.
Our Size Guide is here to help! Vivobarefoot fit 'big' deliberately – we call this ‘the rule of thumb’. Your toes need wiggle room! This is especially important for running. If you can fit your thumb in-between the end of your toe and the front of the shoe, you’ve more than likely found your ideal size.
**After some time with Vivobarefoot shoes, your shoe size may need to increase, as your toes splay out more naturally.**
TODDLERS FOOTWEAR SIZE GUIDE
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 FOOTWEAR SIZE GUIDE
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 FOOTWEAR SIZE GUIDE
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 |
TEACH THEM TO THINK OUTSIDE OF THE BOX
BUILT FOR INDEPENDENT MINDS
The Primus Ludo School is for kids who are learning to stand on their own two feet. This barefoot trainer in uniform-friendly black leather builds on our bestselling Primus School to give kids more independence. Designed with a tongue rather than a sock collar for an adjustable fit that feels snug on narrow and wide feet, plus fixed flat elastic laces and a Velcro strap to help kids pull them on and off easily. Made from soft, durable leather with a breathable lining for all-year wear. Created with autistic and neurodiverse communities front of mind.
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.
Get the Right Fit the First Time
We want to make sure you pick the perfect size when ordering online. That’s why we’ve created clear, easy-to-use size charts for every Vivobarefoot product.
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.
Our Size Guide is here to help! Vivobarefoot fit 'big' deliberately – we call this ‘the rule of thumb’. Your toes need wiggle room! This is especially important for running. If you can fit your thumb in-between the end of your toe and the front of the shoe, you’ve more than likely found your ideal size.
**After some time with Vivobarefoot shoes, your shoe size may need to increase, as your toes splay out more naturally.**
TODDLERS FOOTWEAR SIZE GUIDE
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 FOOTWEAR SIZE GUIDE
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 FOOTWEAR SIZE GUIDE
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 |
10,000+ 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 10,000 orders delivered. Shop with confidence, the adventure is guaranteed.