Inov-8 Men's Roclite 325 Trail Runner 100% Textile/Synthetic Imported Synthetic sole Shaft measures approximately 4" from arch Next-generation Roclite outsole, features our Tri-C rubber compound and multi-directional claw-shaped cleats, providing an unrivalled grip over unpredictable terrain and the quick release of debris. Increased support and comfort: The boot-cut delivers increased ankle support, while super-durable upper materials combined with an 8mm drop ensure outstanding comfort on the run. Cushioned ride: Two-piece PowerFlow delivers 10% better shock absorption and 15% better energy return than standard midsoles. The new Adapterweb met-cradle adapts to the natural movement and swelling of the foot in motion; while the X-Lock system holds the heel in place and offers increased support. Second-generation Meta-Shank is a rock plate that protects the underfoot from sharp rocks, while a strengthened rubber toe-cap shields the toes from obstructive debris.