Are you speaking of 'Muck Boots'? If so, they are still very much in use around here yet.
I have a pair exactly like the pic that are at least 25 years old and I love them.
Easy to slip on and off, very comfortable, and as you said...just spray the dirt off.
Also called Bog Boots. Highly recommend them.
From Amazon....
https://www.amazon.com/Muck-Chore-Classic-Rubber-Womens/dp/B000WG7FUK/ref=asc_df_B000WG7FUK/?tag=hyprod-20&linkCode=df0&hvadid=312672146583&hvpos=&hvnetw=g&hvrand=580861879159585299&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9017479&hvtargid=pla-336813379622&psc=1
