DuraGuide Field Guides by Subject The Duraguide™ series is the newest line of practically indestructible folding field guides. Printed on an innovative waterproof, rip-proof paper, these guides are built to last and can take a beating in the bottom of a pack or boat for years to come. Weighing only 1 oz., they are the light heavyweights of field guides and pack a considerable punch. Duraguide™ titles present valuable how-to information in a format that will never let the user down regardless of the conditions or abuse inflicted. Beautifully illustrated and written with simplicity and clarity, these guides will soon be everyone’s choice to take along on outdoor adventures.