Tough Duck is a Canadian company based out of Winnipeg.
Unpopular opinion, but Carhartts have the most inaccurate, wildly inconsistent sizing out of possibly any clothing company. The same size of the same model between two different pairs of Carhartt pants can be either way too big or way too small.
For bonus points, ask your local stores to start stocking Tough Duck.
About sizing, I just have to shop clothes in person and try them on until it feels right. When I bought my pair of Carhartt’s in 2023, I tried on 6 or 7 different ones before I could figure out which one fit right on me and was appropriate for my usecase.
I can’t shop online for clothes like pants and jackets.