I saw a show about fire-resistant fabrics that were a wool blend although I don't recall a name.
But I have found this: HERE "The core body of the T.R.U. Combat Shirt (TCS) is made from hi tech performance Cordura® brand Baselayer. This might look and feel like lightweight T-shirt knit material, but it's tough as nails and very protective against low level heat. The 60/40 Cotton/ Nylon miracle blend insulates the body when exposed to high temperatures and will not drip or melt like polyester. It incredibly breathable, wicking away moisture 2.5 times faster than 100% cotton, plus it dries quickly. Exceptionally soft, lightweight and comfortable with No Melt, No Drip FR properties."

Also, look at Nomex motorsport clothes.