K1, or Dutch-Style Kickboxing is a fusion of western boxing techniques, Japanese Karate and Muay Thai that focuses mainly on heavy punches and low kicks..

It has been around since the late 1970s and has been growing in popularity since then due to its combination of familiar boxing strategy and asian combat sport techniques. It has a different rule set to Muay Thai; elbow strikes usually aren’t allowed in K1 and blows are scored differently.