There are many companies that make what one would call the lightest canvas wallets. One would be able to purchase the thinnest wallets on sites such as "Big Skinny".
There are many companies that make waterproof wallets. Although the leather wallets can be a little more difficult to find, good name brands include: Resist Today wallets, Dosh wallets, and Makr wallets.
puma makes a canvas bag with leather straps
Redmax makes the lightest trimmers.The 2300 weighs just under 9 pounds.Husqvarna makes a slightly heavier model.
Polo makes great wallets that come in a variety of sizes and made of high quality leather.
2111
Helium
Hydrogen.
koombara
Michael Kors makes designer wallets and handbags. They are made from high quality leather and are enhanced by the fact that over the years they acquire a patina. The wallets (and bags) have the trademark "MK" insignia on the buckles and fasteners.
Ian Teran
Claiborne makes a line of wallets that contain 6 credit card pockets in each wallet.
The lightest recycable thing is plastic because it looks heavy but it is really light and its matierals used are light and that makes light!