I use one of these
https://www.3leggedthing.com/airheds/airhed-360.html
Great bit of kit and the tripod I have is the 3LT Brian which is incredible for its size weight its prefect even with holding either my 7D & 5Diii both bodies gripped with a Canon 100-400L lens no bother and doesnt moan at the 7D with my 300 f.28L either.