I finally managed to get a temporary job in ecology that focuses on managing invasive plant species through chemical application and restoring natural areas like wetlands in Illinois. I'll be starting work soon and plan to work through the summer and possibly fall. I have very limited experience in the field and because of that, I've been able to squeak by with wearing Target rain boots. I want to invest in boots that will last me this working season and ideally beyond since I plan to get a master's next year in ecology. The boots need to withstand herbicides, wet/dry conditions, and be comfortable for long periods of walking. Can anyone give me some brands/boots that could fit these conditions? My job mentioned leather boots, but I would like to avoid buying leather and would rather opt for something synthetic or rubber.