| Brand | Vivobarefoot |
| Model | Primus Trail FG 3.5 |
| Year | 2026 |
| Gender Version | Unisex |
| Category | Light Exercise Advanced Runner Trail Running |
| Terrain | Trail |
| Midsole Technology | 4mm thin barefoot design with trail grip tread |
| Carbon Plate Structure | None |
| Upper Material | Durable breathable mesh |
| Outsole Configuration | FG trail rubber (4mm) |
| Forefoot Thickness | 4.0mm |
| Heel Thickness | 4.0mm |
| Weight | 220g |
| Fit | Snug |
| Breathability | (3/5) |
| Stability | Normal |
| Cushion Distribution | Even |
| Feel Attribute | Barefoot trail, strong grip, clear ground feel |
| Bounce | (2/5) |
| Running Style Recommendation | Neutral |
| Runner Level | Advanced |
| Weight Range | Light |
| Width | Standard |
| Arch Type | Medium |
| Landing Type | Forefoot |
| Price | $176.00 USD (approx.) | Durability | 600 km |
Primus Trail barefoot trail shoe, strong grip
