Uniform wear questions are the worst type of questions, even if as a joke.

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here is your answer:

(Change) 6.4.3.1. Sage Green Boots. Will be worn with the ABU and the flight duty uniform. (Exception: Athletic shoes may be worn if medically necessary, as determined by competent medical authorities at a civilian or military treatment facility and approved by the commander). Boots will be sage green, lace up with plain rounded toe or rounded capped toe with or without a perforated seam. A zipper or elastic inserts may be worn; however, if worn, they will be without design. Green boots can be either with or without a safety toe. [Exception for black combat boot wear in industrial areas: ref para 6.4.3.3.]