Why settle for some old school metal wings when you could instead make it a modification to the Urban explorer jumpsuit? make it so that with the approprate modifications it becomes like a modern day wing suit, not something you can really "fly" with per say, but it would be useful if you where entering a building via the roof or needed to base jump in somewhere.
The way it would work as I picture it would be like having seams running the length of the body from wrist to ankle on the outside and from the crotch to the ankle on the inside of the legs. (Just like a normal wing suit today.) The material to make the wing part of the suit could be orthoskin like in nature, being flexible and light, but also very strong and adaptable (with Ruthenium polymer coating or anti shock mods). Make the mod so that when not in use the material can slack and be cinched into to a orthoskin sheath so it doesn't encumber the wearer when not in use. If you chameleon coated the whole suit and added the mod you'd be a semi visible flying squirrel :p. You'd need some kind of parachute/slow decent device so that you didn't pancake on landing, but otherwise it'd be a pretty cool modification. Though it would be likely to cost a fair amount...