I use these for farming/ranching and they are subjected to all sorts of environments. These boots fit me perfectly and the I wanted pull-on boots to avoid laces but also wanted something more secure than wellingtons. I was skeptical of the BOA laces but love them now...easily adjustable snug fit plus chemicals, mud, manure can't soak into them and washes right off. One big down side to these boots is they are HOT. I learned quickly that on hot dry days typical of wheat harvest you'd better be wearing synthetic socks with foot powder or you'll be pouring the boots out a couple times day. Really wish they offered these in a breathable, composite toe version - that would be a 5 star. I ended up with a 1/2 size smaller than normal.