Flip Side Flip Flops

In most developing countries, rubber flip-flops are the cheapest footwear available, often costing less than a dollar. Measures have been made to reduce cost, such as making them out of recycled tires. Because of their low cost they are very widely used in these countries as typical footwear instead of as fashion wear. Despite their disposable design, street vendors will repair worn sandals for a small fee.
However, in many developed countries flip-flops are typically treated as annual or seasonal, short lasting footwear. Depending on the material makeup of the shoe, some pairs of flip-flops last a year or less. The strap between the toes can snap after moderate use, and although this problem can be solved by using replacement straps that are easily "snapped" into the flip-flop, most people in developed countries do not bother to repair flip-flops because they are very inexpensive and easily replaced.
These disposal habits may pose an environmental problem because most flip-flops are made with polyurethane, which comes from crude oil. This material is a number seven resin and cannot usually be recycled in small amounts. Because of growing environmental concerns, some companies have begun to sell flip-flops made from recycled inner tubes or car tires, as well as sustainable materials like hemp, cotton and coconut.
Flip-flops are also popular with those who enjoy being barefoot but need to wear shoes, since they allow the foot to be out in the open but still constitute a shoe for wear in places such as restaurants or on city streets, and can be quickly and easily removed. They are also popular because they are easy to carry and come in an assortment of colors and patterns.