The Friction U shoe from Millet was specifically designed for movement in rocky environments (Via Ferrata, access to climbing terrain, etc.). It is therefore a favourite of all those who follow the motto "the rougher the road, the more fun". However, it can also be used for classic hiking and casual leisure wear. Wherever you wear the Friction, you'll always appreciate its sturdy construction and unmistakable design. The Friction U boots have been perfectly tailored to make you feel comfortable in them even beyond your usual comfort zone. Its cornerstone is the grippy Vibram® Litebase outsole with a climbing zone that gives your steps confidence when moving over rocky terrain. Like the climbing shoes, their lacing has been extended to the toe. This allows precise tightening and a perfect fit to the foot. As with previous generations of the "Friction", the new version uses a durable suede leather upper material with reinforcement in exposed areas. However, the interior of the shoe has undergone some changes and now offers even more comfort. An extended and improved lacing system. Grippy Vibram® Litebase sole with climbing zone. Cushioning midsole with dual stiffness.