Since the community appears to enjoy Riley riddles, I have another one for the community to solve. As always, good luck to you all!
Witness the prefix, it looks similar to you; built with some wicker, and wire too.
Knowing the infix, will help you a lot; like one or the other, or maybe not.
Recognize the suffix, above you will see; the backbone required, to build your knees.
Open your mind, this word an illusion; no, just to youth, with play in fusion.