1. personally, i wouldn't call these sweatSHIRTS. these are straight sweaters to me (at least to west coast standards).

2. i'm 6'2, 180, and a Large fits me perfectly (don't know how it'll look after it's washed tho). I like my clothes slightly baggy, but still grown man looking, and this is perfect.

3. the inner material is super warm. it's not enough for 40 degree temps, but 55 and above, this is good enough.