Helly Hansen - Trail Beater (Navy/Black) - Men's: 30 years of continual development and use by athletes in all conditions and terrains has created Helly Hansen's Lifa Versa technology. Life Versa's unique properties keep the body dry and its temperature regulated so that you can perform better. Lifa Versa upper provides two layer technology to remove sweat from your feet. The Lifa(R) layer moves water from the foot, while the outer layer wicks the sweat away from the shoe. By engineering Life Versa into the structure of the Trail Beater shoe, Helly Hansen aims for the ultimate dry, cool run for your feet. The Trail Beater performs best when worn without socks. Specially formulated ultra lightweight midsole. Visible enternal C-Zone+(tm) midsole forefoot insert for performance cushioning. Internal C-Zone(tm) heel for shock absorption. Medial 2nd density for added support. Hellywear(tm) carbon rubber outsole. 3M reflective quarter insert. Extended flex zones for a controlled, lightweight ride.