W's Ultraventure 4 Birch Magnesium concentration of 250 mg

Magnesium concentration of 250 mg per teaspoon

3 equal-length poles for foolproof setup

Polarized polycarbonate injection molded lenses

When lives depend on quick action

plenty of storage

W's Ultraventure 4 Birch Magnesium concentration of 250 mgDiscover comfort worth sweating over with the fourth generation of our best selling women's trail running shoes. The Topo Athletic Ultraventure 4s plush platform combines with our signature roomy toe box to deliver long lasting comfort, while the ZipFoam midsole offers lightweight response. Our Vibram XS Trek EVO outsole offers excellent multi surface traction, with a lug pattern and depth optimally designed for light to moderate trails and for easy