The Burton 2021 Cartel EST delivers all mountain performance and is backed with proven technologies. The Cartel is a favourite of many riders delivering the goods year after year. With the Hammockstrap and Supergrip Capstrap, the Cartel will have your boot locked and secured while the flex slider keeps the strap out of the way, making it even easier to ratchet and go. Medium to Firm flex, the Cartel offers plenty of control and response while still offering that comfort factor for all day riding. If you are looking for a binding that will deliver day after day, season after season it's got to be the Cartel. The EST version is only compatible with the Burton channel system.