75% Synthetic; 25% Mesh| Imported| Synthetic sole| Now nothing has to stop you from going deeper into the woods or traveling faster on the trail. The Leadville 1210v2 running Shoes is as tough as its namesake race; combining a responsive ride with durable traction.| Gusseted tongue sewn in place to keep debris out for midfoot protection| Innovative REVlite midsole provides premium responsiveness and durability at a 30% lighter weight than other foams with comparable performance| No-sew material application