Rossingol UNISEX NORDIC TOURING BOOTS X1 Ultra Size 43 US 10

These appear to be the Rossignol X-1 Ultra cross country ski boots. Here's some information about them: Type: Entry-level touring boot designed for beginner recreational skiers. Style: Classic skiing. Binding compatibility: NNN/NIS, Prolink. Features: Traditional lace-up design with an external cover to keep snow out. Touring-specific sole for increased support. Reinforced toe-box and nylon midsole for durability. Lock Down foot wrap and Active Control heel support for comfort and control.