Velcro fails at highway speeds

My 1965 Skylark convertible boot lifts up at highway speeds over 55 mph, making it useless for travel. Is there a way to fix this or a different type of boot that won't come loose at higher speeds?

 

I thought the 65 top boots had plastic clips with metal brackets that attached to the boot and snapped on to the chrome trim pieces to hold the boot on.

I don’t know of any Velcro.
Duane

 

Sorry Duane, I didn't mention that the velcro is what attaches the boot to the top back of the rear seat. I don't know if this is original or not.....

 

It’s been a long time but if it’s like the later model cars there is a plastic strip on the top boot that slides into a grooved piece along the rear seat top.
Duane

 

My 66 Cat has snaps along the leading edge

 

My 64 boot is permanently attached to the top of the back seat

 

Looks like I might need a different boot.

 

Tomorrow I will post a photo of how it is attached