X-BIONIC TerraSkin X01 is an engineered trail running shoe built for medium and long-distance training. It pairs a second-skin Skinknit upper with Speedframe Pro construction for secure support, precise fit, and enhanced traction on technical terrain. Key attributes: Beige | Polyester | Grip and traction on technical trails | Stable heel support | Breathable upper | Low 5 mm heel drop for agility | Speedframe Pro wrapping for stability | Air Cool Stripes for enhanced airflow | Twin 3D foam for cushioning | Socks included | Seamless tongue-free Skinknit upper | V-shaped heel counter | 3D Achilles tendon protector | Integrated heel cage | Dimensions & fit: Lugs height: 3.7 mm | Heel stack: 31 mm | Front stack: 26 mm | Heel drop: 5 mm | Snug, second-skin fit for close lockdown and precision on technical terrain. | Composition & care: Upper: 70% Polyester, 30% TPU | Midsole: 100% EVA (ethylene-vinyl acetate) | Outsole: 100% Rubber | Socks: 81% Polyamide, 12% Polypropylene, 5% Elastane, 2% Polyester | Machine wash max 30°C (mild). Do not bleach. Do not tumble dry. Do not iron. Do not dry clean.