Atomic HAWX Ultra 115 S BOA is a high-performance alpine ski boot that pairs a stiff 115 flex with a BOA closure for quick, precise micro-adjustments on the slopes. Key attributes: Black | Dust | Prolite shell | Stiff flex (115) | Prolite lightweight shell construction | High-performance alpine power transfer | BOA closure system | Micro-adjustable fit | Sleek alpine silhouette | Dimensions & fit: 98 mm last (low-volume fit) | Flex index: 115 (stiff)