Inov-8 Women's Trailtalon 250-U Trail Runner 100% Textile and synthetic Imported Rubber sole For trail running, ultra running Multi-directional 4mm deep studs, each with a wide contact area, provide aggressive grip, excellent underfoot stability and quick release of any debris Power flow midsole technology delivers 10% better shock absorption and 15% better energy return than standard midsoles Light, breathable upper feels fast, while dynamic fascia band delivers a kick of energy with every stride Integrated gusseted tongue ensures all debris is kept at bay