Karakoram Flex Lock system

Detailed description - Flex Lock system

• Flex Lock system let you feel your boots during riding like soft boots but while touring, like hard boots. Sidehilling – no longer the bane of splitboarders. Simply flip the
  Flex-Lock lever to gain sidehilling leverage. You’ve never been so powerful while touring in icy conditions. Flip the lever back to regain lateral flex to surf the mountain and kick your methods.
• Works with all Karakoram Bindings since 2012