Vivobarefoot PRIMUS TRAIL FG 3.5 Men's Trail Running Shoes OBSIDIAN

Vivobarefoot Primus Trail FG 3.5 – Barefoot Freedom on the Trail

The Vivobarefoot Primus Trail FG 3.5 is designed for those who want to move in nature in the most natural way.
It combines barefoot philosophy with the necessary grip and durability to perform on demanding trail terrain.

With its zero-drop construction and flexible sole, it allows the body to function naturally while providing the control and stability needed on uneven ground.

Trail Performance with Natural Movement

• Direct ground contact for better terrain awareness
• Enhanced proprioception and balance on uneven surfaces
• Natural cushioning through the body
• Freedom of movement on technical trails
• Ideal for trail runners who choose minimal equipment

Firm Ground (FG) Sole – Grip & Control

The FG outsole is designed for use on natural terrain, offering a balance between grip and ground feel.

• Multi-directional lugs for secure grip on dirt and trails
• Thin barefoot construction for enhanced ground feel
• Durable rubber for long-lasting wear
• Flexibility for natural adaptation to the terrain

Upper – Durability & Outdoor Protection

The upper is designed for demanding use in the outdoors, with an emphasis on protection and breathability.

• Durable materials for trail and hiking use
• Breathable mesh for temperature regulation
• Reinforcements for protection from rocks and obstacles
• Secure fit for safety on technical sections

FootShape Design – Natural Stability

The spacious design allows the toes to spread naturally, which is critical on uneven terrain.

• Improved balance on trail routes
• Better adaptation to uneven surfaces
• Efficient power transfer

Technical Features

• Drop: 0mm (Zero Drop)
• Stack Height: ~5-7mm (barefoot trail construction)
• Men’s Weight: ~280g
• Women’s Weight: ~240g
• Outsole: Firm Ground (FG)
• Materials: Durable mesh with reinforcements

Ideal for

• Trail running
• Mountain running on technical trails
• Hiking & fast hiking
• Outdoor activities with a barefoot philosophy

Why choose it

The Primus Trail FG 3.5 allows you to move in the mountains with complete natural freedom, without sacrificing grip and protection.
It is the ideal choice for those who want to “feel” the trail and move with control and precision with every step.