I ordered a pair of size 11 Bogs rubber boots for caving. I wear a 11.5 and they are too small. I am selling these for $58 which will cover UPS ground anywhere in continental US. They were worn on two cave trips are still considered new. I switched to these boots from wearing Beta boots for years. They have a very sturdy sole compared to Betas.
Here is a link to the boots on Sierra Trading Post (via tinyurl),
http://tinyurl.com/mk6medr
Can purchase via Paypal. PM for questions.
John Hickman
Nashville, TN