My sewing involves both outdoor clothing and gear, as you can see on my instagram page (link above). The pattern I drafted myself, roughly based on a basic pants and jacket pattern, but adjusted to fit a seating position (1 setof darts in the knee and elbow region, 2 sets of darts in the seat area). The fabric I sourced locally here in Norway, the gaskets and zippers were bought onling (ebay/aliexpress).