Corduroy on the right side, and BOMBERHEAT's signature super-fine smooth velour on the reverse side. The fabric has completely different textures on each side, but they're created by weaving a single fabric, rather than by bonding two.
There's no adhesive, so it's thin and very flexible, unlike bonded fabrics. Note: BOMBERHEAT® is a registered trademark. You need to apply to the manufacturers to use their trademarks.