The phrase "hard top" refers to a type of vehicle roof that is solid and made of a rigid material, such as metal or fiberglass, instead of being made of fabric or soft material. Full definition
The full - leather interior and retractable hard top with hardwood trim packages made the car synonymous with luxury. (automotive.com)
Car buyers can select between models with hard tops, soft tops or no roof at all, allowing them to enjoy convertible driving however they please. (fieldschryslerjeepdodge.com)
Hard top convertible with a full, powered sunroof. (shoppok.com)