I'm a commercial electrican working currently working around alot of mud.  I've tried the knee high rain boots, but they don't offer support or are not tough enough to stand the rips/holes created by walking around a construction site. I've tried nice Sorel boots...but they are the same way... no support, no resistance to cuts or punctures.  SO, I thought these would be great.  They slide over my supportive, steel toe, $150 dollar leather boots while still remaining water proof.  However, though it says to purchase it oversized and I bought a size 14 for my size 11 boots...they are EXTREMELY hard to slip on and take off.  I should have gotten a size 16! But, when it did slip on, it was nice and my coworkers really liked the idea of supportive work boots and mud/water protection. I'd get this again... just a whole lot bigger.