PET (Polyethylene Terephthalate) is a plastic commonly used in water and soda bottles, clam-shell food containers, fleece clothing, chip bags (most commonly in its thin form "Mylar" and metalized), blister packaging, etc. It has a well developed recycling
infrastructure (it's the #1 inside those recycling arrows) and can be
used to make very durable, high quality products.
Eco-Pro: Recyclable with a well developed recycling infrastructure (labeled number 1). Available in recycled formulations.
Eco-Con: Doesn't always get properly recycled, and can end up in a landfill
Question the Premise of the Material: Does the application need a clear plastic? an opaque recycled version of PET work instead?