Yakima SkyBox NX XL 18 Roof Top Cargo Carrier, 18 Cubic Feet, Black – Vehicle Rooftop Hard Shell Travel Storage Box with Dual Sided Opening, SKS Locks and Universal Review

Introduction
The Yakima SkyBox NX XL 18 Roof Top Cargo Carrier is a hard-shell rooftop storage box designed to expand your vehicle’s hauling capacity by 18 cubic feet. Built for families, road-trippers, outdoor enthusiasts, and anyone who needs reliable extra storage for luggage, camping gear, ski/snowboard bags, or bulky items, this carrier aims to keep cargo secure, dry and neatly stowed while freeing up interior space. Its dual-sided opening and SKS lock system make it a practical choice for frequent travelers and those who value convenience and security on the road.
Detailed Description and Features
Capacity and Use Cases
With 18 cubic feet of interior volume, the SkyBox NX XL accommodates suitcases, duffels, sleeping bags, and medium-sized outdoor equipment for weekend trips or longer vacations. The shape and internal volume are optimized for common travel items, making it suitable for families and small groups who need to transport additional gear without cramming the cabin.
Construction and Durability
The box is a hard-shell design made from robust, weather-resistant materials intended to protect contents from rain, snow and road debris. The exterior is contoured for aerodynamics to help reduce drag and wind noise compared to older, boxier models. The build is engineered to withstand repeated use across seasons while remaining relatively low-maintenance.
Mounting and Compatibility
Yakima designs the SkyBox NX series to be compatible with most crossbars and roof rack systems using an integrated mounting system. The carrier is intended for straightforward attachment to Yakima bars and many aftermarket crossbars; however, users should always verify compatibility with their specific rack and vehicle roof load limits prior to purchase and installation.
Access and Security
A key convenience feature is the dual-sided opening, allowing access to cargo from either side of the vehicle. This is particularly helpful in tight parking situations or when accessing items from one side of the car. The product also uses Yakima’s SKS (Same Key System) locks which provide keyed security and can often be keyed to other SKS-equipped Yakima products for one-key convenience.
Practical Features
Other practical aspects include internal tie-down points (or the option to add straps), quick-release mounting hardware for faster install/removal, and aerodynamic shaping intended to reduce wind penalty. The finish is available in black to match a wide range of vehicle colors and roof-rack setups.
Pros and Cons Based on Customer Feedback
Pros
Customers commonly praise the SkyBox NX XL for its roomy interior, sturdy feel, and weather resistance. The dual-sided opening is consistently highlighted as a major convenience, and many users appreciate the SKS locks and the overall secure fit when mounted correctly. Installers often note that the mounting hardware is intuitive and that the box looks streamlined and well-integrated on the roof.
Cons
Common negatives reported include the box’s price relative to soft carriers or smaller hard-shell alternatives, and the physical effort required to lift and mount the box—especially when loaded. Some buyers report compatibility frustrations with certain crossbar profiles or needing extra adapters. A minority of reviewers mention wind noise or slight vibration at highway speeds depending on vehicle and rack setup. As with any rooftop carrier, users must also be mindful of roof load limits, which can restrict how much gear can be safely carried.
Customer Feedback Summary
Overall customer feedback for the Yakima SkyBox NX XL 18 is largely positive. Reviewers appreciate the ample capacity, solid construction, and practical dual-sided access. Security via SKS locks and the attractive finish are often called out as perks. Typical criticisms focus on price, the physical challenge of handling a large hard-shell box, and occasional fitment issues with non-standard crossbars. Many users recommend confirming compatibility with your specific roof rack and practicing installation before a long trip to avoid frustration.
Conclusion and Recommendation
If you frequently travel with extra luggage, outdoor gear, or need a durable, secure solution to free up interior space, the Yakima SkyBox NX XL 18 is a strong, premium option. It balances capacity, convenience and security with an aerodynamic hard-shell design. Prospective buyers should weigh the cost, confirm crossbar compatibility, and consider how they will lift and load the box. For families and active travelers who prioritize durability and ease of access, it’s a worthwhile investment.
Find the Yakima SkyBox NX XL 18 on Amazon: https://amzn.to/4nv5lgK
Product Comparison Table
| Product | Amazon Rating | Price | Buy Link |
|---|---|---|---|
| Thule Motion 3 Rooftop Box XL | 4.4/5 ⭐ | $1,079.95 | Buy on Amazon |
| SportRack Vista XL Rear Opening Cargo Box,Black | 4.4/5 ⭐ | $517.28 | Buy on Amazon |
| Thule Force 3 – Size XL – 18 cu ft – Aerodynamic roof Mounted Box – Dual-Sided Opening with Locks – Tool-Free Install – Weatherproof Design – for SUVs, Trucks, Cars, EVs and More | 4.3/5 ⭐ | $929.95 | Buy on Amazon |
| Yakima SkyBox NX XL 18 Roof Top Cargo Carrier, 18 Cubic Feet, Black – Vehicle Rooftop Hard Shell Travel Storage Box with Dual Sided Opening, SKS Locks and Universal | 4.3/5 ⭐ | $798.95 | Buy on Amazon |







