Best Undercover Tonneau Covers in 2026

CHECK YOUR LENGTHS AND PRESSURE BEFORE ORDERING. THESE ARE NOT COMPATIBLE WITH ALL PLASTIC TONNEAU COVERS! THE MEASUREMENTS ARE FROM CENTER OF BALL MOUNT TO CENTER OF BALL MOUNT, NOT FROM END TO END OF STRUT! SEE PICTURE!

Truck Upfitters Pair of 38 pound gas struts. 27.5" extended length and 15.6" compressed length (measured from center of each ball mount). 29" overall extended length (measured from tip to tip). Use a measuring tape to measure the door gas strut that you are replacing. Measure from the CENTER of the gas prop head (little plastic end), to the other side. DO NOT measure from the end of the gas prop, your measurement will be too long. Note that most applications allow for 1-5% size variation.

These undercover bed cover shocks do not match all tonneau cover struts and are only compatible with undercover pickup bed cover. If you are not sure of the fit, measure your gas strut lift support from center of socket to center of socket when fully opened & fully closed to get accurate measurement. Please see pictures to determine how to measure gas springs. Do NOT measure from end to end. Measurement must be from the center of plastic ball mount on each end of the gas spring lift.

Fits 1999 - 2014 Ford F-150 Passenger Side

TRUCK BED COVER COMPATIBLE ; The UnderCover SwingCase maintains a 3-inch clearance from the truck bed and works with virtually all tonneau covers: soft, hard, folding, and rolling

ULTIMATE ACCESSIBILITY ; This toolbox swings out nearly 180° towards you for easy access from the tailgate and swings back into a locking position over the wheel well for maximum bed access

Fits 2015 - 2020 Ford F-150 6' 7" Bed (78.9")

100% BED ACCESS | The low-profile BAKFlip G2 hard folding cover allows you to drive with the cover fully closed, folded, or flipped up without covering the 3rd brake light

ENHANCED SECURITY | This cover features durable aluminum panels and an automatic latching system, providing greater security over vinyl covers. The G2 is operational from either side of the truck bed with quick-release cables under the panels

[FITMENT] Only fit hard quad-fold or hard tri-fold truck bed cover.

[PACKAGE INCLUDE] 2x triangle screw, 2x front clamp, 4x rear clamp, 6x T-bolt.

[MATERIAL] Made of premium plastic and aluminum for durability and stability.

Fitment: 2009-2018 Dodge Ram 1500, 2019-2021 Ram 1500 Classic Body, 2010-2018 2500 Pickup, 5.7ft Fleetside Bed. Xcover is Low Profile and sit inside of truck bed, full stake pockets available to be used with the cover on. Please make sure your 2019-2021 Ram 1500 is the CLASSIC BODY.

Well Protect Your Cargos: Xcover Low profile Hard Tri-fold tonnneau cover is designed to perform in the most extreme conditions,premium UV resistant and cold resistant, no matter snowy, rainy, windy or sunny, your cargos on the bed will be well protected from moisture and dirt.

Unique Clamping System & Theft Protection: Patent pending rail and latch design, Xcover latch allows for one-finger release to open and locks automatically when you close the cover. Hard Panel is scratch resistant and provides maximum theft protection.

Fits 2019 - 2021 Chevrolet Silverado/GMC Sierra 1500 (does not fit Carbon Bed) 5' 10" Bed (70")

ULTIMATE DURABILITY The ArmorFlex hard folding cover has durable, matte-finished aluminum panels with a patented LINE-X coating to help prevent dents, dings, & scratches for superior protection in extreme environments.

ENHANCED SECURITY & FUNCTIONALITY This cover’s automatic latching system locks each panel in place with releases on either side of the bed for easy operation. Its dual-action tailgate seal allows you to shut the tailgate without lifting the cover first.

Fits 2007 - 2021 Toyota Tundra CrewMax w/ Deck Rail System 5' 7" Bed (66.7")

LEGENDARY VERSATILITY | The RetraxONE XR features the Trax Rail System compatible with virtually any T-Slot accessory allowing you to double your truck bed cargo capacity

LEGENDARY STYLE | The RetraxONE XR has a stylish matte finish, giving it superior protection against UV damage and scratches, and is backed by a 1-year guarantee and our US-based customer support team

EASY TO OPERATE: Convenient pull strap with Continuous Tension Spring that helps the cover retract smoothly in seconds.  Opens by pinch latch.  Locks in open or closed position.

HIGH QUALITY CONSTRUCTION: Made of weather resistant, padded polymer bonded to aluminum panels for ultimate look and security.  Cover is gloss black powder coat with flush, low-profile rails.

FULL VISIBILITY: Allows full rear visibility and easy to remove for full truck bed access

Strong nylon pull strap assists you in closing the cover, very helpful on taller trucks

Secure, versatile and weatherproof twist locks allow you to open your undercover with or without your key

Standard no-drill concealed clamp bracket system makes installation very easy

#FITMENT: Compatible For 2015 2016 2017 2018 2019 2020 2021 2022 2023 Ford F-150 With Truck Bed Length 6.5'/78.9"| Styleside |;NOT For Models With Factory Utility Track System & Cargo Bar System Which Need To Remove Before Installation;Pls Confirm The Truck Bed Size or Contact Us Before Ordering!;

*ITEM-OFFERED: Soft Roll Up Tonneau Cover,Full Set of Installation Kits And Instruction Manual.;

*Eay Installation and Usage: Cover Placed On Top Of The Bed Rails,With Quickly Clamps To Fix.No Drilling,Only Needs 15-20 Minutes for installation,Need To Remove Any Accessories On The Bed Rais Such As Cargo Rack;Simple Usage by Pushing Or Pulling The Lock On The End, And Roll Up and Down The Tarp.