For rainy days, the Scandinavian-style heavy-duty rain gear sometimes seen at forest schools in the US is the ultimate outer layer. Typically sold as a set consisting of overalls (bib pants) and a jacket, and made of polyester and polyurethane blends, these garments do a great job of keeping wind and rain out. Layer them with a fleece jacket in cooler temperatures and combine them with a pair of rugged rain boots for endless fun in puddles of mud.
