- FIRM GROUND OUTSOLE – The Firm Ground Outsole is made from a sticky rubber compound for maximum grip and durability. With a 3mm base and 2.5mm lug height, plus a textured arch for zonal grip (ideal for technical trail movement), this sole will keep your feet firmly planted on multiple terrains — wet to dry, concrete to rocky.
- ORTHOLITE INSOLE – The Active Ortholite Performance Insole is made of 98% recycled PU foam, which helps reduce waste and the use of virgin plastics.
- REATHABLE MESH – Breathable, lightweight and comfortable.
- PESO – Based on a single shoe in Men’s size: EU 42 | UK 8 | US 9 – 281 g
The Primus Trail 3.5 FG is for runners who live for the end of the road. These all-terrain trainers are light and flexible enough to move freely, and tough enough to run wild on rough, rocky ground. Made with recycled, vegan*, high-performance materials – including an 71% recycled polyester upper.
MATERIALS:
- UPPER: Vamp: 100% Recycled polyester mesh, Overlay: 95% recycled polyester/5% recycled spandex
- LINING: Mesh: 100% Recycled polyester, Microfiber: 80% recycled polyester / 20% Polyurethane
- FASTENING: Laces
- LACES: Recycled polyester
- INSOLE: Ortholite Performance
- OUTSOLE: 90% Synthetic rubber / 10% Natural rubber
- Hecho en Vietnam.
CARE:
- CLEANING: Brush off mud and clean with a damp cloth.
- DRYING: Remove insole and dry at room temperature. Keep out of direct sunlight and avoid putting on a radiator.
WOMENS FOOTWEAR SIZE GUIDE
| FOOT LENGTH (CM) | UE | Reino Unido | A NOSOTROS |
|---|---|---|---|
| 21.2 – 22.1 | 35 | 2.5 | 4.5 |
| 22.2 – 22.8 | 36 | 3 | 5 |
| 22.9 – 23.5 | 37 | 4 | 6 |
| 23.6 – 24.1 | 38 | 5 | 7 |
| 24.2 – 24.8 | 39 | 6 | 8 |
| 24.9 – 25.4 | 40 | 7 | 9 |
| 25.5 – 26.1 | 41 | 8 | 10 |
| 26.2 – 26.8 | 42 | 8.5 | 10.5 |
| 26.9 – 27.4 | 43 | 9 | 11 |
MENS FOOTWEAR SIZE GUIDE
| FOOT LENGTH (CM) | UE | Reino Unido | A NOSOTROS |
|---|---|---|---|
| 24.6 – 25.5 | 40 | 6 | 7 |
| 25.6 – 26.2 | 41 | 7 | 8 |
| 26.3 – 26.9 | 42 | 8 | 9 |
| 27.0 – 27.5 | 43 | 9 | 10 |
| 27.6 – 28.2 | 44 | 10 | 11 |
| 28.3 – 28.9 | 45 | 11 | 12 |
| 29.0 – 29.6 | 46 | 11.5 | 12.5 |
| 29.7 – 30.3 | 47 | 12 | 13 |
| 30.4 – 30.9 | 48 | 13 | 14 |
| 31.0 – 31.6 | 49 | 14 | 15 |
| 31.7 – 32.3 | 50 | 15 | 16 |
| 32.4 – 33.0 | 51 | 16 | 17 |











































