Thule Roof Box Lid Cover Size 4 — Indoor Protective Slipcover for Large Boxes, Washable

The Thule Box Lid Cover size 4 is an indoor protective slipcover that shields your Thule roof box lid from dust and scratches during storage.

When your Thule roof box is not in use, exposed lids can collect dust, scuffs and light abrasions that dull finish and create extra cleaning work. The Thule Box Lid Cover size 4 is designed specifically to match larger Thule models and provides a soft, washable barrier so your roof box stays ready for the next trip. Lightweight and easy to use, it keeps the exterior surface protected while taking up minimal space when folded away.

How does this cover protect the roof box lid?

The cover is made from a soft vlies (non-woven) fabric that prevents abrasive contact and traps dust without scratching the painted surface. It fits snugly to limit movement and reduce the chance of scuffs during storage.

• Soft vlies material cushions against light impacts and abrasion
• Reduces surface dust and prevents dirt buildup
• Elastic edge ensures a secure, non-slipping fit over the lid

Will it fit my Thule roof box model and what sizes are available?

The size 4 cover is tailored for Thule’s larger roof box models so you get a close fit that protects the actual lid shape. Thule offers multiple cover sizes, and size 4 is compatible with specific large Motion and Force XT models.

• Designed for Thule Motion 3 XL, Motion 3 XXL low, Motion 3 XXL
• Compatible with Thule Motion XT XL, XT XXL, and Alpine configurations
• Also fits Thule Force XT XL lids for a precise match

How easy is it to use and maintain the cover?

Putting the cover on or taking it off is quick thanks to a stretchy, elasticized edge that slips over the lid. When not in use the cover folds compactly and stores in its integrated pocket, and it’s washable for simple upkeep.

• Elastic hem for quick slip-on and secure hold
• Integrated pocket stores the cover compactly when folded
• Washable fabric lets you refresh the cover if it collects dirt

Is this cover intended for outdoor use or long-term protection?

The Thule Box Lid Cover is engineered for indoor storage protection rather than outdoor weatherproofing. It prevents scratches and dust while stored in a garage or attic, but it is not a weatherproof cover against rain or UV exposure outdoors.

• Recommended for indoor storage only — garages, sheds, or closets
• Not built for prolonged outdoor exposure to weather
• Best used to keep paintwork and trims in like-new condition during off-season

Who is this for: The Thule Box Lid Cover size 4 is ideal for owners of larger Thule roof boxes who want a simple, effective way to preserve the lid’s finish between trips. If you store your rooftop box in a garage, storage room or attic and want to reduce cleaning and prevent small scratches, this washable, compact cover is a practical, model-specific accessory to extend your box’s appearance and resale value.