Ergodyne N-Ferno 6472 Winter Insulated Bib Overalls is $91.99 at Amazon, down from the store's own list price of $140.25. That's 34% off ($48.26 less). We last checked this price on Nov 9, 12:06 AM ET. Prices at the store can change at any time, so check before you buy. Brand: Ergodyne. Type: Safety & PPE. Picked for all trades.