







RECLAIM YOUR RAW POTENTIAL
WIDE, THIN, AND FLEXIBLE TO ELEVATE EVERY WORKOUT
The Primus Lite 3.5 is a versatile performance trainer for running, cross-training, and dynamic day-to-day living that reclaims your natural potential. It’s wide for natural stability, thin for natural feedback, and flexible for natural movement.
The upper is made from 81% recycled polyester. We currently need the polyurethane for durability, but the Primus Lite 3.5 upper is closer to 100% polyester than ever: one step closer to a circular upper, and one step closer to circular footwear.
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.**
WOMENS FOOTWEAR SIZE GUIDE
CM | EU | UK | US |
22.8 | 35 | 3 | 5.5 |
23.5 | 36 | 3.5 | 6 |
24.2 | 37 | 4 | 7 |
24.9 | 38 | 5 | 7.5 |
25.5 | 39 | 6 | 8 |
26.1 | 40 | 7 | 9 |
26.9 | 41 | 8 | 10 |
27.5 | 42 | 8.5 | 11 |
28.2 | 43 | 9 | 11.5 |
RECLAIM YOUR RAW POTENTIAL
WIDE, THIN, AND FLEXIBLE TO ELEVATE EVERY WORKOUT
The Primus Lite 3.5 is a versatile performance trainer for running, cross-training, and dynamic day-to-day living that reclaims your natural potential. It’s wide for natural stability, thin for natural feedback, and flexible for natural movement.
The upper is made from 81% recycled polyester. We currently need the polyurethane for durability, but the Primus Lite 3.5 upper is closer to 100% polyester than ever: one step closer to a circular upper, and one step closer to circular footwear.
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.**
WOMENS FOOTWEAR SIZE GUIDE
CM | EU | UK | US |
22.8 | 35 | 3 | 5.5 |
23.5 | 36 | 3.5 | 6 |
24.2 | 37 | 4 | 7 |
24.9 | 38 | 5 | 7.5 |
25.5 | 39 | 6 | 8 |
26.1 | 40 | 7 | 9 |
26.9 | 41 | 8 | 10 |
27.5 | 42 | 8.5 | 11 |
28.2 | 43 | 9 | 11.5 |
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.