In cold or cooler weather I am happy to wear the heavier pants, and I am sure that my northern cousins would insist on it since my favorite "Year-Round" pants are very thin and won't protect you much from cold air. Both Lands' End and L.L. Bean seem to have equally nice pants for colder weather, and since each has stores concentrated in the North I am not surprised. Lands' End primarily in the Northeast with only a few stores in Southern California, Georgia, North and South Carolina and Florida. L.L Bean has even fewer stores with nothing in the South.
And don't be afraid of the "wool" material. The Lands End wool pants are extremely comfortable.
The comfort waist expands a bit and gives you some flexibility, especially nice since not all 34 waist pants fit the same. Some of my 34 waist pants are too tight and I am keeping them around with the hope that I might lose a few pounds.
If you would like to be kept informed about what I've found or about sales on 34x36 pants please