The bib is insulated with the same L-12 Lamilite that is used in our sleeping bags. There are #10 two way zippers on each leg, easy functioning fly, and unique suspender system. The suspenders attach from the bib front to the lower front. The high back attaches to the top of the bib with a two-inch elastic web. When nature calls, you can detach the front from the back and drop the back without having to remove the suspenders. A pouch pocket is placed in the bib front. Machine washable and dryable!