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Petzl Back Flex is a heel bail system. It allows you to use Petzl crampons with mountaineering or snowboard boots that don’t have heel welts. Sold in pairs to equip a pair of crampons.
- Compatible with LEOPARD LLF, LEOPARD FL, IRVIS HYBRID, IRVIS, VASAK, SARKEN, LYNX, and DART crampons with the FIL FLEX, FIL FLEX SMALL, or FIL FLEX WIDE toe bails
- Product sold in pairs with fastening straps