Vivobarefoot Primus Trail Knit FG Trainers - Polyester - UK 2.5

The knit upper offers some flexibility, but the fit is generally designed to be snug and adaptive. Refer to specific sizing information and consider if other Vivobarefoot models might better suit wider feet.

This varies greatly per individual. Some adapt within days, while others may take several weeks. It's crucial to start with short walks or runs and gradually increase duration and intensity.

Yes, you can wear socks with these trainers. However, many users prefer to wear them sockless to maximize the barefoot feel and ground connection.

'FG' stands for Firm Ground, indicating that the sole is designed to provide optimal traction on a variety of natural surfaces like dry dirt, mud, and grass.

Use a soft brush to remove loose dirt, then wipe with a damp cloth. For stubborn mud, a very mild soap solution can be used sparingly, followed by a thorough wipe with a clean damp cloth. Always air dry.

The Primus Trail Knit FG is designed for breathability and natural feel, not waterproofing. The knit upper will allow water to pass through. They are water-resistant to a degree but not fully waterproof.

Ensure you have followed the sizing guide carefully. The knit upper should feel like a sock, but if it's uncomfortably tight, consider if a different size or width is needed. Allow a short break-in period as the knit can adapt slightly.

Ensure the sock-like collar is pulled up and fits snugly around the ankle. If persistent, consider wearing gaiters or socks designed to help seal the shoe opening.

The FG sole is designed for versatile grip. For extremely wet or slick conditions, run with increased caution and focus on foot placement. Ensure the sole is clean, as mud buildup can reduce traction.