For reference, I'm someone who is very sensitive to cold with a high tolerance for heat, in my home I'm comfortable at around 84F and that's where I try to keep it, wearing a t shirt and pajamas, any colder than that and I get uncomfortable. This is to put into perspective how warm this jacket is for me, with just a polyester Henley base layer and the quasar hoody i was walking outside in 30F weather and I was fine. For reference to size I am 6' 1" 195Lbs athletic build with a size 40 chest and 33 waist with long arms and this jacket fits me great, the sleeves are nice and long so they fit me perfectly and the overall cut of the jacket is at a good length for me as well this is in a Men's Medium.
This review was written in the old system and had content requirements that are different than reviews written today.