Important Notice to Customers concerning the 966 Button Fly Bib Overall...The Button Fly is being replaced over the next 18 months with a ZIPPER FLY. If the size you normally order has been removed from the SELECTED SIZE Drop Down Menu, that size is no longer available in a Button Fly and is now manufactured as the 980 with a Zipper Fly. Please go to the #980 Zipper Fly Bib Overall to place an order for your size. Going forward, for #966 Button Fly Overall sizes still shown as available...these orders will be fulfilled on a First-Come-First-Served basis with available Button Fly overalls, if any, then completed with, or fulfilled completely with Zipper Fly overalls. So, your order may be shipped with all button fly versions, a mixture of button fly & zipper fly versions, or all zipper fly versions. When ordering #966 Overalls, you acknowledge and understand you may receive overalls with a Zipper Fly. If your preference is the button fly, and your size is still available, we recommend stocking up now before they are gone.