La Sportiva Helios SR Minimalist Men&rsquo;s Racing Trail Running Shoe fabric-and-synthetic HIGH PERFORMANCE MINIMALIST DESIGN; Lightweight trail runner is great for barefoot and minimalist runners looking for light cushion and foot protection during long trail runs and backcountry racing HIGHLY BREATHABLE air mesh uppers on the top of the running sneaker provide high breathability keeping your feet dry and preventing blisters DURABLE REINFORCED TOE protects your feet and allows the shoe to hold up run after repeated runs. Rubber sole sticks rocks, tree roots and rugged terrain HIGHLY STABLE low drop sole provides extreme traction in even in steep, rocky, rugged and highly technical terrain. FriXion AT rubber sticks to rocks during ridge line climbs and scrambles LOW VOLUME FIT. This high-performance racing shoe is agile and has a tight fit for all day comfort for quick training laps to 50k high alpine backcountry runs