| Brand | Vivobarefoot |
| Model | Primus Lite IV All Weather |
| Year | 2026 |
| Gender Version | Unisex |
| Category | Daily Training Light Exercise Trail Running |
| Terrain | Mixed |
| Midsole Technology | 4mm thin barefoot design + waterproof treatment |
| Carbon Plate Structure | None |
| Upper Material | Waterproof mesh |
| Outsole Configuration | Durable rubber (4mm) |
| Forefoot Thickness | 4.0mm |
| Heel Thickness | 4.0mm |
| Weight | 210g |
| Fit | Snug |
| Breathability | (3/5) |
| Stability | Normal |
| Cushion Distribution | Even |
| Feel Attribute | Barefoot feel, waterproof breathable, all-weather |
| Bounce | (3/5) |
| Running Style Recommendation | Neutral |
| Runner Level | Advanced |
| Weight Range | Light |
| Width | Standard |
| Arch Type | Medium |
| Landing Type | Forefoot |
| Price | $182.67 USD (approx.) | Durability | 600 km |
The Primus Lite IV All Weather is the waterproof version of Vivobarefoot's iconic barefoot shoe, featuring a 4mm ultra-thin sole with zero-drop design for maximum ground feel. The waterproof mesh upper keeps feet dry during wet runs. Very minimal cushioning, not suitable for runners seeking plush comfort. Ideal for barefoot enthusiasts as an all-weather trainer for light exercise and entry-level trail running.