adidas Vigor TR 4 - Women'sTakeover the trail with the improved adidas Vigor TR 4 trail running shoe. The updated midsole and outsole gives you even more aggressive traction so you can run with force. Highlighted with TraXion? rubber outsole, this adidas trail running shoe delivers aggressive traction that's sure to challenge the wildest terrain. Great for outdoor running, the mesh upper increases natural airflow to keep your feet cool and dry. Molded EVA sockliner reduces foot slippage while increasing wearing comfort. AdiPRENE? midsole cushions step and absorbs shock so you can smoothly step on and over the roughest terrain. Wt. 10.6 oz.