4 season fabric soft topper, no drilling required.
The SofTopper is the lightest way to close in a Sierra bed — a 4 season fabric shell over an aluminum frame that clamps to the factory bed rail, no drilling and nothing permanent added to the truck. It folds back in seconds when the bed needs to be open for a full load.
The fabric is rated for genuine 4 season use, holding up against snow load in winter and UV exposure through a full summer without the canvas breaking down.
It's the choice for anyone who needs the bed both ways — sealed and dry on a weekend trip, then wide open on Monday morning for a hardware store run. Nothing about the SofTopper is permanent, so it never gets in the way of how the truck is actually used.
Choose your color from the dropdown above before adding to cart.
| Material | 4 season rated ripstop fabric, aluminum frame |
| Fitment | GMC Sierra standard bed rail, clamp on |
| Mounting | No drilling — clamps to factory bed rail |
| Weight | Approx. 18kg (lightest topper in our range) |
| Access | Zippered rear and side panels |
| Warranty | 3 year fabric warranty, 2 year frame warranty |
| Color Options | Grey, Black, Red, White, Blue, Orange, Cream White, Brown, Yellow, Gloss Black, Silver, Matte Black |
The SofTopper clamps directly onto the Sierra's factory bed rail with no drilling and no permanent modification. Most owners install it themselves in under an hour using the included clamp hardware and instructions.
Wipe the fabric down with a mild soap solution after muddy trips and let it fully dry before folding it down to prevent mildew. Check the zippers periodically for grit build up, and re tension the frame clamps if the topper starts to shift slightly at highway speed.
Designed for the GMC Sierra standard bed length. Confirm your specific bed length (5'8", 6'6", or 8') when ordering, as the frame is sized to match.
Warranty & Shipping
Covered under TrailGuard's standard 5 year structural warranty, 3 year finish warranty, and 2 year mechanical warranty on struts and locks. Ships in 7–10 business days across the USA, Canada, Australia, and New Zealand. Full warranty & shipping policy →
Yes — the SofTopper doesn't interfere with towing capacity or trailer wiring.
Yes, the fabric and frame are 4 season rated and tested against seasonal snow accumulation.
