Ani Safety now carries online the Servus XTP(Extra Traction Performance) Boot http://www.anisafety.com/index.aspx?Com ... roupID=205 or http://tinyurl.com/36tyu9
These are great caving boots!....long life...tough...and great traction. You can also find them in Tractor Supply Retail Stores.
Mark Passerby, Caves.com