Most reviewers suggest sizing up, especially if you’re between sizes, so they’re not too tight. They’re comfortable enough to wear without socks even in the summer!
Promising reviews: “Sloggers are awesome! This is my second pair, and the first pair lasted 12 years before the heel wore out, and believe me, they had tons of work miles on them. They are waterproof, fit true to size, and mud sprays right off them with the hose. Great for dirty yard work and easy yard work. They have many styles/designs and are cute. They are made in the USA, which I love. Can’t recommend enough.” —Blondie
“When it’s muddy, I need waterproof, and so far, they seem perfectly waterproof. I even walked across a little creek in them. The inside of the shoe is made of something soft that doesn’t stick to my feet, which means in the summer, I can wear them without socks. And they come up a little bit on the foot, so that they are protection from that accidental step-on by a sheep or goat hoof.” —Amazon Customer
Get them from Amazon for $34.99 (available in sizes 6–11 and 25 prints).