Vivobarefoot Primus II FG Running Shoe – Women's scarpa less stiff and bulky than

less stiff and bulky than a traditional work flannel

Hook-and-loop attachment system clips directly to compatible Altra trail shoes and stays put

PrimaLoft® Silver Insulation Luxe™ fills the body panel for efficient

or anywhere the work doesn't stop

Breathable mesh lining promotes airflow — a real advantage in hot

Vivobarefoot Primus II FG Running Shoe – Women's scarpa less stiff and bulky thanBuilt for runners who want genuine ground feel without sacrificing durability, the Primus Trail II FG is our pick for minimalist trail running on dry to moderately wet terrain. A recycled mesh upper and 3mm multi directional lugs deliver breathability and grip where Southern trails demand it. Available in Obsidian, Graphite, Insignia Blue, and Sea Green. Firm ground outsole with 3mm multi directional lugs grips rocky, rooted trails and handles light