OK, I admit I really like sneakers and have since I was a kid, in the single digits. From what I can tell it looks like Ky and Boomer are wearing sneakers (UK: Trainers). Even Mookee looks to be wearing a knee high version of sneakers (sneakers from another planet), but considering his height an Earth pair of high tops might be knee high for him. Other guys, in the series, look to be wearing sneakers (e.g. those on the various E-Teams), but the gals don't look to be wearing sneakers (IMHO that's not fair).
Should you want to comment / discuss the footwear in this series, please, feel free to do it in this thread! :-)