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Which Pants? Darien vs. AD1 vs. Utility...Regular vs. Light
AD1 pants fit me a little better than Darien pants. Their rise is less, so the waistband rides a little lower, and it’s slightly curved, which I also like better. The AD1’s included belt is a 1.5" Aerostich money belt, versus the stronger 1.5" side-release-buckled belt on the Darien pants. And compared to the Darien pant the AD1’s knees are ‘bent’ a couple of degrees more, which is nice for bikes with a little more rear-positioned footrests. The radius of this bend is a little bigger, too, so there is a bit more space for knee pads. Darien pants fit and feel a lot like Khaki's or regular pants and AD1's fit and feel a little more like jeans.
Up to about 70ºf I wear my AD1 Lights over regular jeans or khaki pants. When it’s warmer they go over Aerostich cotton riding shorts…which we sew right here, too. The new Utility Pants fit like the AD1's, and have all the function, protection and styling of those, but without the full-length side-zips, belt, or reflective on the leg adjustment tabs. You can slip them on and wear them all day, whether logging hundreds of miles or just riding across town to run errands. Remove the TF3 kneepads and these super-tough pants are practical as everyday off-bike wear, too.
– Mr. Subjective
"The Darien and AD1 pants fit a little different…The Darien's fit like khaki 'Docker'-type chinos and dress pants. They have a straight waistband and a higher rise than jeans. The AD1's have a lower rise and a slightly conical waistband that is angled a bit lower in front. So these fit more like old-school denim jeans. I slightly prefer the AD1's fit."
- Mr. Subjective.