There is a theater nearby my house which has so cold aircon (it's only theater with good quality and accessible). But I have to wear 5 shirts and 2 normal sweaters and still feel cold. What kind of sweater is there out there that is so thick or equivalent to 5 shirts/2 sweaters or more all worn same time? Is this how those eskimo sweater feel like. How do you know the thickness and coldness reduction factor of thick sweaters?