GO like never before in the Skechers GObionic - Prana shoe. This zero-drop, ultra-minimal performance running shoe features a design developed using advanced biomechanic innovations inspired by the human body. ExoFit construction upper reacts and moves like a second skin, surrounding the foot with supportive and breathable materials. Extreme Flexibility with roomy toe box and vamp area along with an articulated sole allows the toes and foot greater freedom of motion. Zero Drop design eliminates traditional heel lift so the entire foot remains low to the ground in a more natural position. 18 Bio-Responsive ResalyteTM cushioning zones added to key flex points of the foot add protection without compromising responsiveness. Decoupled responsive zones linked by ligament-style connectors to permit increased plantar- and dorsiflexion for more natural movement and enhanced feeling. Super lightweight and responsive. Named 'Editor's Choice' by Runner's World UK - October 2012Construction:Ultra lightweight mesh fabric upper. Lace up zero-drop barefoot-style running shoe. Stitching and overlay detail. Lace-up front. Padded collar. Smooth comfortable interior for barefoot wear. Agion® scent protection built in to combat odor causing elements. Custom Fit - run with or without 1.7mm removable insole. 11.5mm ResalyteTM shock absorbing midsole. Water resistant midsole layer. M-Strike high abrasion rubber traction pads on sole. Weight: 4.5 oz. in a size 7.