I adore these - exactly as advertised they're snug at the top and loose around the ankle, the fit is perfect (I'm a UK size ten, or for low-rise Levis a 28" waist, and I ordered a Medium which is exactly right. I do like my trousers quite fitted, though, so if you don't a Large will be spot-on), they look fantastic and they're durable. Really great for outdoors activities in all weather, comfortable, hard-wearing, and highly recommended.
Not only are these fantastic, the customer service was also exeptionally good. I'll be shopping with Molecule again.