My expectation of sweats are baggy, loose fitting pants to wear around the house.
I'm a 34" waist so I ordered the medium (as usual).  After a handful of washes, they are tight like a new tube sock. I feel like i gained 10 lbs, but I didn't.
If I were to buy this item again, I would order -at least- one size larger and suffer the bagginess until the shrinkage stopped.
But that's the thing, I won't buy this again...
Bottom line, kinda thin and expect shrinkage.