Is there any way of increasing the 15.9 cubic feet hauling capacity of your Kia Optima?
In this day and age where the market is filled with numerous products and misleading descriptions, choosing the ideal carrier is not a walk in the park.
However, we have done a lot of research to provide you with a comprehensive list of the best roof boxes for your Kia Optima.
Table of Contents
Kia Optima Roof Boxes Overview










Last update on 2023-09-30 / Affiliate links / Images from Amazon Product Advertising API
RocketBox Pro Compact Rooftop Cargo Box
- Aerodynamic design to reduce drag with forward mounting hardware for improved hatch clearance making it great for small vehicles
- Perfect for smaller cars, hatchbacks and SUVs; Hauls gear for up to 2 campers
- Quick-dial mounting hardware fits Yakima round, square, factory and most aerodynamic bars
- Love it 'Till You Leave It Limited Lifetime Warranty
Last update on 2023-09-30 / Affiliate links / Images from Amazon Product Advertising API
SPORTRACK SR7095 Skyline XL Cargo Box
- Made of high-density material for added stability
- Passenger side opening for access away from traffic
- Easy to attach and remove from the vehicle
- Includes locks to secure contents in the box
- U-bolt mounting hardware kit is included for the installation of the Skyline XL cargo box on most vehicles with factory installed or aftermarket roof racks rated at 150 lbs
Last update on 2023-09-30 / Affiliate links / Images from Amazon Product Advertising API
INNO BRA240BK Ridge Cargo Box
- INNO designed and made in Japan
- Aerodynamic, lightweight design for superior noise reduction and easy on/off installation
- Universal fit aero, square, round, and most factory racks
- Safety lock system key can only be removed once box is locked
- Limited Life Time Warranty
Last update on 2023-09-30 / Affiliate links / Images from Amazon Product Advertising API
Goplus Cargo Box
- Perfect for Road Trip---Take the cargo box to the park, the beach, the sports field, or any place you need to store. Works on all vehicles with rack, suitable for cars, vans, SUVs, etc. Sleek aerodynamic design to reduce drag and has less noise.
- 14 Cubic Feet Cargo Box with Car Trunk Organizer---With the large capacity, the roof cargo box can help you securely carry 14 cubic feet worth of essentials, can increase vehicle cargo space without impeding on passenger comfort, more capacity, more pleasure! Included trunk organizer comes with 3 different size compartments, 12 side bags which will help you organize sundries with ease.
- Robust and Security Design---The roof cargo box is designed to withstand heavy use in different types of weather conditions. The metal lid stiffeners at the bottom makes the roof box more stable and safer. With the double-lock design for protecting your valuables.
- 【Note】This product is suitable for vehicles with rack (Compatible with 17” to 22.8” wide rack, the width of the crossbar should be less than 3.1 inches and the thickness should be less than 1.0 inches)
- High Quality Material---The roof box is manufactured from sturdy ABS and PC material for long-lasting use, able to protect your valuables from exposure to the elements and can load 165 lbs capacity, suitable for round, square, factory and most aerodynamic bars.
Last update on 2023-09-30 / Affiliate links / Images from Amazon Product Advertising API
Thule 682 Sidekick Rooftop Cargo Box
- Compact roofbox, ideal for small loads such as camping gear or golf clubs
- Sturdy U-bolts with reinforcement plates and adjustable brackets provide a secure fit to rack
- Compact design leaves room for other roof mounted accessories
- Passenger side opening for easier loading and unloading
- External Dimensions: 54 x 25 x 15.5 in
Last update on 2023-09-30 / Affiliate links / Images from Amazon Product Advertising API
Conclusion
Installing a roof box will significantly increase the height of your Optima. When driving with the roof carrier mounted, be wary of the height restrictions such as low clearance parking lots, tunnels and underpasses. However, all the highlighted roof boxes are aerodynamically designed to reduce this effect as much as possible.