Jim Lee puts a lot of stuff on costumes that doesn't seem to serve any purpose, either functionally or even aesthetically. Like weird collars, arbitrary lines and piping, and so on. It is possible to overwork a design, and I've seen him fall into that pitfall. Boot straps on a Green Lantern strikes me as strange and they don't look good on that character to me. That Kyle Rayner design is a few steps down from the Darryl Banks one, IMO.