Vivobarefoot Primus Trail Fg Women’s Athletic Shoes size 10.5 / 42 Sneakers Great preowned condition! Signs of wear include some discoloration and dirt, and wear to the outsole. See all pictures for details! Wear your sustainability statement with the Primus Trail FG, featuring a Firm Ground sole with low-profile lugs for traction over trails and rocky terrains. Constructed for durability and robust flexibility, each pair uses recycled PET bottles to create a breathable mesh upper, ready to explore off the beaten track with natural barefoot freedom.