The tonneau cover came with the truck but I had no need for it. Already had one from previous truck (folding kind). Cover was used for 4-5 months (previous owner). Excellent condition.
GM part#
Shield the cargo in your Silverado and help protect the bed itself from harsh weather with this Soft, Roll-Up Tonneau Cover. Constructed with integrated crossbows, it easily rolls up to allow full access to the bed and features an embossed bowtie logo. Soft Tonneau Cover - Extended Cab, Crew Cab, 5'8" Short Box, Not for use with Tubular Bed Rails