Discover Comfort Worth Sweating Over With The Fourth Generation Of Our Best-selling Trail Runner. The Topo Athletic Ultraventure 4 Trail Running Shoes 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 Trail-to-road Transitions. The Recycled Mesh Upper Features A Fresh Look, Now With Strategically Placed Pu Print For Added Structure And Durability.