Vivobarefoot Primus Trail FG 3.5 Men's Color:Obsidian ultra-packable comfort for 2

ultra-packable comfort for 2

Amplifies road shifter cable pull to allow for seamless communication with mountain derailleurs

We also added an arched rolling stay that helps keep the top of the sack open while loading and shapes an easy to grab handle when sealed

AirVent™ Inner Back Yoke

Shifter Compatibility: Shimano Road

Vivobarefoot Primus Trail FG 3.5 Men's Color:Obsidian ultra-packable comfort for 2Hit the trail to rewild yourself and reconnect with nature. The Primus Trail 3. 5 FG is a light, durable, flexible trail running trainer that brings us one step closer to circular footwear. FIRM GROUND OUTSOLE Stand firm on multiple terrains. ORTHOLITE INSOLE The Ortholite Performance Insole is made of 98% recycled polyurethane foam, which helps reduce waste and the use of virgin plastics. BREATHABLE MESH Breathable, lightweight and comfortable.