Britax Safe N Sound Compaq MKII Instructions For Installation & Use page 81

To remove headrest cover from adjustable headrest with side wings:
Remove headrest cover by unclipping the press studs next to the
shoulder harness. At the back of the headrest hardware lift elastic loops
over headrest and peel cover away from the seat.
D. Unhook the elastic loops at the top of the
cover located at the back of the restraint
and the elastic loops at the bottom of the
restraint located under the front of the
restraint.
CARE & MAINTENANCE
Press
Studs
Unhook elastic
loop at the back
of the restraint
Instructions for Installation & Use
81