Asymmetrical Flex Center Bars Item # BD400675POLSALL1 Asymmetrical Flex Center Bars Standard delivery within 6 business days Free economy shipping threshold Product Details Comprised of a flexible spring steel, Black Diamond’s Asymmetrical Flex Center Bars are aggressively curved for boots with highly asymmetrical soles. An asymmetrical center bar for modern mountain boots. Features/Technology Tech Specs Weight Per Pair 65 g (2.3 oz) Weight 3.53 Reviews