“In a class by itself... NOT composite, NOT cellular PVC ”
“SOLID PVC DECKING with enhanced surface technology ”
http://www.genovaproducts.com/decking.htm/

Specially Engineered Solid PVC

Solid structure, without any foam or wood fillers, will not absorb moisture. Will never warp, rot, crack, splinter or stain, providing a truly low maintenance deck.
Color
Durability / Barefoot Friendly Latest technology ensures a lifetime of enhanced weatherability. Natural wood-grain, low gloss surface in seven earth tone shades to perfectly accent any home (Driftwood, Cedar, Birchwood, Sandalwood and variegated Chestnut, Walnut and Sandstone). Comfortable, slip resistant surface that exceeds ADA requirements stays cool to the touch and has no exposed fasteners.

Uniquely engineered boards allow installation on up to 24" centers (16" for 5/4 board) with the use of common deck screws. Build a beautiful, durable deck with a few simple components. Strategic design allows for automatic spacing and board alignment, simplifying the installation and reducing labor costs significantly. No expensive fasteners or tedious spacers!