Got a chance to try them this weekend and they fit and worked great. Before I received the boots I was concerned by one reviewer who suggested to get a size larger. I'm glad I didn't because my boots were actually on the loose side, which is great for when I need to slip on those wool socks. I have 17" calves and these boots were able to comfortably accommodate them plus my paddling pants tucked inside. I was actually more comfortable having these on paddling than having on my Tevas or being barefooted. Just need to remember that these boots were made for flexibility so do be cautious walking around in them during loading and portages. And Yes, they kept my lower extremities dried as promised. I had to load in about 15" of water and it was exposed to rained for my 6 hours of fishing. The best part was my feet didn't feel clammy and sweaty even with plain cotton blend sports socks on. This is a superb product from NRS, and Backcountry.com offered them at the best price I found on the net.......with free shipping to boot! Thanks guys!!!