The Salomon S/Lab Classic Boa Unisex ski boots are designed for those seeking exceptional precision and comfort. Featuring the innovative Boa Fit System, these boots allow for superior micro-adjustability, ensuring a perfect fit for every skier. The carbon shell, compatible with the separately sold SLAB shaft, provides optimal flexibility for traditional skiing techniques, while the customizable Custom Fit Race liner enhances stability and efficiency on the slopes. Key Features from the user's perspective Boa Fit System for precise micro-adjustments Carbon shell compatible with SLAB shaft for enhanced flexibility Custom Fit Race liner for improved stability and efficiency Adjustable width for personalized comfort Soft flex for expert-level training Prolink Nordic standard for versatile use Weight 732 g (per pair) Size and Fit Last width: Adjustable Flex: Soft