A high-end air permeable Gore-Tex or eVent waterproof-breathable rain jacket costs $350 or more; it’s not ultralight, and it requires maintenance. The lightest one is the Montane Spektr at 8 ounces. A polyurethane laminate rain jacket costs $150-$200 and is lightweight (down to about 6 ounces), and its durable, but not very breathable. Proper jackets are cheap but not very durable. In this article I will describe how to make a hooded Tyvek jacket plus chaps for under ten dollars, in a few minutes using a pair of scissors.