I carry a backpack when hiking but when I settle on a spot to get set up, finding a place to set everything down without risking misplacing meters, filters, etc is often a problem. Wouldn't be without my seven-pocketed cargo pants to hold all sorts of things. The large pockets with zippers, snaps and velcro closures are just the ticket for holding anything smaller than my camera or tripod. They're the perfect mate (or substitute) for a photographer's vest.