We have in class II a Römer King Plus - for I bought a reference and fit ... holds good, can be washed well and protects us at the headquarters in the fall / winter of dirty shoes - the reference is just easier to wash than the actual child seat cover ... The plan was thus also for the Cybex same ... Sorry, did not work out ... The cover can not be mounted properly - no holds especially in the headrest and does not cover the whole seat ... Unfortunately, there is no alternative :( A Yes, and much more expensive was the respect of Cybex even than the Romans ... Conclusion - I am disappointed ...