Gotta say what the others have said.......contact LL Bean on proper care. You should be able to use boot oil the leather parts.
I rarely wear anything other than work boots.....even around the house. I've bought nothing but Redwing boots since '75......extra $$$ but well worth it. My current pair is over 10 years old and can stand being oiled again......if I'm in the area of one of their stores I can drop them off and they will oil them free of charge.
When I'm good, I'm very, very good, but when I'm bad, I'm better.