Chippewa 72" wax laces are the essential backup supply you need. Your laces are inevitably going to weather and break, though, your boots are going to need a fresh set of laces. This is a durable lace that will give your boots a proper fresh wind. Get yourself a set of the "Sta-Tied" waxed laces before you head out for any of your tough jobs.
Please note: Actual packaging may vary from image.