This vest is the perfect accessory for chilly mornings or descents. The pockets on the back make it more versatile than most other options, allowing you to pack a gel or phone on the outside layer. Size M fits me perfect at 5'10" 150lbs. 37" chest.
Excellent construction. Good fit. Just the right amount of core body protection on transitional days.
L furs just right on my 5'11" 170 lb. body.