For people who work outside having good rain gear is critical. This is especially critical in rainy parts of the country. Rain gear for work Auburn WA, for example, is highly important as the rainy season can last from October until the beginning of July. 
The first rain gear was created in Scotland in 1824 by Charles Macintosh.

The Wikipedia entry on raincoats describes how he came up with a new type of fabric that was created by placing a core of naphtha softened rubber between two pieces of tarpaulin fabric. This invention soon became popular in many parts of the world as it was very effective as a rain barrier. 

Mail carriers, construction workers, and other occupations demand rain gear including both raincoats and rain pants. Farmers and ranchers also need good quality rain gear in order to effectively do their jobs in the great outdoors. This guide describes the variety of rain gear that is especially suitable for these types of occupations. 

Ranchers and farmers are outdoors in all seasons and so have different needs depending on the time of year. Rain gear made of a nonbreathable fabric might be fine in the winter, for instance, but during a summer squall they could end up feeling like their in a Turkish bath if they are wearing this sort of rain gear. Another problem they might run into is that they have rain gear that effectively keeps heat in and the rain out but if they are working during calving season with the wrong rain gear it can be far too rigid to be able to wrestle the new calves. 

Nowadays, ranchers and farmers have many options to choose from to eat their varied needs through the course of the year. They can wear rain jackets, full rain suits, or slickers depending on their needs and the weather. One of the best things about modern rain gear is that it is breathable and so doesn’t get too hot while still keeping sufficient heat contained. 

Rain gear comes in a variety of price points but the old adage that you get what you pay for holds true. the cheaper stuff is made of rubberized materials. This can be fine if the person wearing it is someone like a dairy farmer who is infrequently going out into the elements, spending most of their time in the barn with the cows. 

Those who need to be outside for the day in the elements on a horse managing their cows will want something of a much higher quality. For them, it is worth paying more for high-quality stitching as that is where water enters the rain gear otherwise. Better quality gear also has a water-resistant coating the wicks water right off and onto the ground. 
Better quality rain gear is also more durable. It is usually worth the extra cost of higher quality because better rain gear lasts a lot longer than the cheaper stuff. The most durable gear people can look for is made of polyurethane which is durable while still being very affordable.