If isolation is a priority, the Takstar Pro 80/HyperX Cloud/HyperX Cloud II/Q-pad QH 90 is a good value, if you can find one. They’re all more or less the same pair of headphones sold under different names. It’s in the same ballpark as the Marshal headphones depending on the model you get. Just thought I’d throw that out there! Not quite as portable, but super comfy. Thanks again for reading.