Recommended Tonneau Cover and Topper Combo for a 2025 GMC Sierra 1500 w/a 5-3/4' Bed

Updated 08/24/2026 | Published 08/17/2026

Products Featured in This Question

Fas-Top Traveler Soft Tonneau Cover and Truck Topper System

$1399.00

Question:

Which soft topper do you recommend if I already have a tonneau cover installed and I want to keep it in place? Looking to use soft topper and then stow it away and use my tonneau cover. 2025 1500 Sierra AT4 - 5.8ft. bed Thanks!

asked by: Marc J

Expert Reply:

Hey Marc. I have a solution but unfortunately there are no soft toppers that will work with an existing tonneau cover that can be installed at the same time. They use the exact same mounting space and clamp onto the inside edge of your Sierra's bed rails.

The Fas-Top Traveler Soft Tonneau Cover and Truck Topper System item # FT76RV is the only way to install a topper tonneau cover combo. This combo is custom fit for your 2025 GMC Sierra's 5-3/4' bed. Both the topper and the cover share the same frame rails as mounting points so there's no compatibility issues.

The topper on the Fas-Top item # FT76RV is completely removable when you're done using it. The tonneau cover rolls up and stores at the front of your bed so it's out of the way when you're using the topper or need full access to your Sierra's bed.

What kind of gear do you typically haul around in the bed of your truck? Feel free to answer this and throw in any other questions you have, where it says Add Comment.

expert reply by: Jerred H