Hey mate, just double checking im reading your sizing chart correct - the measurements on the chart are the FLAT dimensions of the jackets as if it was on the ground - SO if i held a tape around my chest from armpit to armpit & from my sholder tip down I would get find my correct size? Also how tight are the armholes in your jackets? my current is an XL however slips up 2 easily. Cheers!!

Hey Michael. Yeah its as if the vest is lying flat on the ground. Armholes are pretty good, if you can give me a call on 0245775458 i could help you out with sizing over the phone