| Brand | Vivobarefoot |
| Model | Primus Lite IV |
| Year | 2026 |
| Gender Version | Unisex |
| Category | Light Exercise Fitness Advanced Runner Speed Training |
| Terrain | Mixed |
| Midsole Technology | Ultra-thin Rubber Sole (Barefoot Experience) |
| Carbon Plate Structure | None |
| Upper Material | Breathable Mesh |
| Outsole Configuration | 3mm Thin Rubber |
| Forefoot Thickness | 3.0mm |
| Heel Thickness | 4.0mm |
| Drop | 1mm |
| Weight | 180g |
| Fit | Snug |
| Breathability | (3/5) |
| Stability | Normal |
| Cushion Distribution | Even |
| Feel Attribute | Barefoot, Thin Sole, Ultra-light |
| Bounce | (3/5) |
| Running Style Recommendation | Neutral |
| Runner Level | Intermediate |
| Weight Range | Light |
| Width | Standard |
| Arch Type | Medium |
| Landing Type | Forefoot |
| Price | $119.33 USD (approx.) | Durability | 300 km |
Primus Lite IV barefoot trainer
