We had a cold and chilly front blow through Florida last week, which gave us an opportunity to look at something we haven't paid much attention to in a few years: waterproofing coatings for fabrics. Textile technology has seen some significant new developments since our last complete test of waterproof coatings. Chemical engineers have found new ways to impregnate fibers with coatings that can last through dozens of wash cycles. Some new after-market spray protectants have emerged as well. The end result is clothing that -- if you choose right and don't put on too many pounds -- you won't have to think about replacing for 10-15 years, or even more. Â