The 'PlusMinus' Shoe Degrades Back into the Earth in 90 Days

 - May 12, 2013
References: kickstarter & conceptkicks
Wearing the same shoes for over three months can be a drag but with the 'PlusMinus' biodegradable shoes, you can stop without feeling guilty. The lightweight summer slip-ons are designed to degrade straight back into the Earth after 90 days of wear. Nutrients like nitrogen and sulfur are released upon the shoe's expiry.

The shoes are made of wool because of its optimal qualities for the PlusMinus. Wool is biodegradable, breathable and water-repellent. The sole of the shoe is made of a thin layer of rubber. Most of the rubber should wear out by the end of your 90 days of use.

Currently on Kickstarter, the PlusMinus shoes come in two collections. You can opt to take the classy route with the 'Classic Collection' or go modern with the 'Solid Collection'. Both collections come in vibrant color combinations like slate/aqua and slate/lime.