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Protect your Gear and
Be Ready.
Theft-proof and weather-proof DiamondBack Covers are the perfect compliment to your GMC Sierra, keeping your gear safe, sound, and bone dry.
SupermaxSecurity
StronghaulDesign
WeatherwallDefense
Built InThe USA
Choose Your
Sierra Cover.
Whichever DiamondBack you choose, you’ll never worry about the gear in your Sierra’s bed.
Switchback
HD
SE
Protect your Gear.
With aluminum up to 4x thicker than other folding bed covers and an anti-theft design with high-security components, our custom-fitted GMC Sierra tonneau covers will keep your gear extra safe wherever you go..
Keep your Gear Dry.
Engineered for your Sierra to keep the elements out, because no-one likes wet, dusty gear.
Full perimeter
Defense.
Our thick, EDPM compression gasket completely seals the bed of your Sierra, keeping the outside out, and the inside in.
Rain Gutters
Any water on top is channeled-away from your Sierra’s bed when you open your DiamondBack. It’s the little details that matter.
Built to Last.
Backed by a Lifetime Warranty, DiamondBack’s patented design and aluminum construction adds strength, security, and do-it-all capability to the bed of your Sierra.
Strength =
do more.
Load up-to 1,600 lbs. on top. It’s like a force-multiplier for you and your Sierra, saving you trips, time, and effort. Pile it on, strap it down, and get it done.
Aluminum Ribs.
DiamondBack’s structural support ribs are built with 0.08" thick aluminum and are custom-engineered to your Sierra’s frame making it the strongest, most haul-ready cover available.
Beats gluing plastic to foam and (maybe) slapping some thin aluminum on top like other folding truck covers.
Proudly Built in the USA.
DiamondBack invented the first top-hauling, ultra durable folding truck bed cover and each one is built in Philipsburg, PA by a team dedicated to American manufacturing.
Hear it from Sierra owners
who are ready.
What’s better than actual reviews written by Sierra + DiamondBack owners who had the same questions you’re (probably) asking now? Experience is everything, and they have the answers.
#DIAMONDBACKREADY
$82 a
month
Get the custom Sierra bed cover you want. Easy financing and low payments are available right now with Affirm. Think of it like insurance for your gear.
$0
Down
0%
Financing
Get the custom Sierra bed cover you want. Easy financing and low payments are available right now with Affirm. Think of it like insurance for your gear.
