• I've not seen it on any other MTB trousers, but I've not been looking. 🤷

    I think the half length fly zip reduces bunching. Does mean you need to pull the waistband down a bit if you want to pee.
    Two sets of poppers on the main body of the trousers, plus one set on the flap that covers the fly. This allows for a bit of adjustment.
    The fabric is stretchy too. I wouldn't say they have masses of adjustment, but they're not fixed when it comes to waist tension.

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