Barbara D.wrote a review of Arc'teryx Sigma SL Pant - Men's on March 28, 2019
Familiarity: I've used it once or twice and have initial impressions
Fit: Runs small
These pants are basically a slim version of the Lefroy. Nice? Yes, but not worth $170.
The Sigma FL is worth the money ($189). If the Taan Forrest came in the FL I'd return these and order the more expensive pair.
Product review: Nice, light and comfortable; great fit and finish. They price point on these should be $110-$120