Hothead Headliners [hotheadheadliners.com]
is having a site-wide sale on all their Jeep Wrangler/Gladiator products. Use code MDAY2020
for 10% off all orders (applied at checkout). You will get free shipping on all headliner orders. Looks like shipping non-headliner orders is variable.
I checked out with their Jeep Gladiator headliner with both of the extra options (side panels & Sound Assassin). Normally $383.95 down to $345.56 out the door. Great reviews on the forums and their site. Good for Jeeps to help regulate temp/noise.
They have other options as well for other Jeep models/years. Here are a few: