The jacket is more thicker than what I thought. I guess it's insulation. I'm 176cm high, around 80kg. The size Medium is suitbale for me. When you wear it, looks like a Inverted triangle. The wide sleeves are very convenient for the outdoor motion. The zip is coppery, the fabric is very firmed and water resistant, just like a suit of armour. It's a great jacket for me.