Men's Topo Ultraventure 4 Size:11.5 The SD100 is equipped with

The SD100 is equipped with a full-length FuelCell midsole that offers a propulsive feel perfect for racers striving to go faster

Machine washable hat with adjustable back closer allows for this hat to fit most and keeps your hat from smelling like the last five miles

Weight - Weighing just 24g empty

Powerstep Provides Insoles

electrolytes

Men's Topo Ultraventure 4 Size:11.5 The SD100 is equipped withDiscover 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