Protection in many ways!
Mechanic by trade, movement of my arms must not be inhibited. However, I am often outdoors or on the ground (or both ) and need protection of my chest and back. This vest fits the bill! It is light in weight and provides excellent thermal insulation! I have used one for years and it is still going strong! I just bought another one, to give the first one a break, out of respect for it! Besides providing warmth and protection, it also gives peace of mind! I highly DO recommend this Vest!