Thule Force 3 S 300L Roof Box – Black Matte

Compact & Aerodynamic 300L Car Roof Box for Everyday Adventures

The Thule Force 3 S 300L Roof Box in Black Matte combines practical storage capacity, rugged durability and aerodynamic styling in a compact, easy-to-use roof-mounted cargo box.

With a generous 300-litre capacity, maximum load capacity of 75kg and lightweight 14.8kg construction, this versatile Thule roof box provides valuable additional luggage space for weekend breaks, family holidays, camping trips and everyday travel.

Featuring Thule's durable AeroSkin finish, PowerClick quick-mount system, SlideLock security mechanism and convenient dual-side opening, the Thule Force 3 S makes transporting extra luggage straightforward.

Whether you're exploring the Scottish Highlands, travelling to Loch Lomond or heading away on a family holiday, this compact roof box helps free up valuable space inside your vehicle.

Key Features & Benefits

• 300L Storage Capacity – Extra space for luggage, camping essentials, travel bags and outdoor equipment.

• Compact 140cm Length – A shorter roof box design that is particularly useful for drivers who don't need a large or extra-long cargo box.

• 75kg Maximum Load Capacity – Carry additional luggage securely, subject to your vehicle and roof rack weight limits.

• Lightweight 14.8kg Construction – Combines practical storage capacity with manageable roof box weight.

• Durable AeroSkin Finish – Tough, textured Black Matte surface designed for everyday use and outdoor adventures.

• Aerodynamic Design – Streamlined shape helps reduce wind resistance and road noise compared with less aerodynamic roof storage solutions.

• PowerClick Quick-Mount System – Convenient installation with an integrated torque indicator that clicks when correctly tightened.

• SlideLock Security System – Automatically locks the lid and indicates when the roof box is securely closed.

• Dual-Side Opening – Convenient access to luggage and equipment from either side of your vehicle.

• Optimised Boot Access – Forward positioning helps minimise interference with your vehicle's rear tailgate.

• Thule One-Key System Compatible – Can be incorporated into a compatible Thule One-Key locking setup.

• Black Matte Finish – Practical, modern styling that complements a wide variety of vehicles.

Practical 300L Storage for Everyday Travel

The Thule Force 3 S Roof Box offers 300 litres of enclosed storage, helping you carry additional luggage without overcrowding your vehicle.

Its compact interior is well suited to travel bags, outdoor clothing, camping accessories and other equipment that fits within its internal dimensions.

By moving bulky items onto your vehicle's roof, you can free up valuable boot and passenger space, helping make longer journeys more comfortable.

Whether you're packing for a weekend away, a family holiday or an outdoor adventure, the Force 3 S offers a practical alternative to larger roof boxes.

Compact Design with a Shorter 140cm Length

One of the biggest advantages of the Thule Force 3 S 300L is its compact external design.

Measuring 140 × 89.8 × 38cm, the roof box delivers useful storage space without the extended length of larger luggage or ski-focused models.

The shorter profile may be particularly appealing to owners of smaller cars, hatchbacks and compact SUVs, provided the vehicle and roof rack are compatible.

Its forward mounting position is also designed to help reduce interference with the rear tailgate.

For customers who prioritise compact dimensions rather than maximum luggage capacity, the Thule Force 3 S is an excellent option to consider.

Durable AeroSkin Finish for Year-Round Use

The Thule Force 3 S features Thule's rugged AeroSkin surface, designed to withstand regular use and the demands of an active lifestyle.

Its textured Black Matte finish provides a durable exterior with understated styling.

Whether you're using the roof box for weekend adventures, family travel or everyday equipment transport, the robust construction is designed for reliable performance throughout the year.

Aerodynamic Design for Comfortable Travel

The Thule Force 3 S features a streamlined aerodynamic shape designed to complement modern vehicles.

Its carefully considered profile helps reduce air resistance and wind noise compared with less aerodynamic roof storage options.

This makes it a practical choice for motorway journeys, Scottish road trips and regular travel.

Actual fuel consumption and wind noise will vary depending on your vehicle, roof bar system and driving conditions.

Quick & Secure Installation with PowerClick

Thule's innovative PowerClick mounting system makes fitting the Force 3 S to compatible roof bars straightforward.

The integrated torque indicator produces an audible click when the correct mounting force is reached, helping you confirm that the roof box is securely attached.

This intuitive system simplifies installation and removal, particularly for drivers who only need extra roof storage occasionally.

Secure Storage with SlideLock

The SlideLock security system provides convenient locking and secure closure.

Separate opening and locking functions automatically lock the roof box lid when properly closed.

The system also indicates when the lid is securely fastened, helping provide reassurance before setting off.

Together with the included locking hardware, this makes the Thule Force 3 S a practical choice for carrying luggage and outdoor equipment.

Dual-Side Opening for Convenient Loading

The Thule Force 3 S features dual-side opening, allowing you to access the interior from either side of your vehicle.

This makes loading luggage, organising equipment and retrieving belongings easier.

It's particularly useful in car parks and during longer journeys when you may not always have convenient access to the same side of your vehicle.

The naturally shaped opening handle also makes opening and closing the lid straightforward.

Ideal for Scottish Road Trips & Weekend Adventures

From weekend escapes around Loch Lomond to road trips through the Scottish Highlands, the Thule Force 3 S 300L Roof Box provides convenient additional storage for your adventures.

Its compact shape, durable construction and secure mounting system make it an excellent choice for drivers who want extra luggage capacity without choosing a much longer roof box.

Whether you're heading to the Cairngorms, enjoying a camping weekend or travelling across the UK, the Force 3