Use for cycling, 3-75 miles ride. They have the right amount of cushioning without feeling very bulky. The length is perfect, comes to mid thigh (I'm 5' 1 tall). The material really wicks moisture away from you. Just the right amount of compression. If you are in between sizes I recommend sizing up.
I was hoping it was a little more lightweight, to be used as a vest on cool starts that I can easily stow away once it warms up. It is probably a bit more robust than I initially thought, but I have found it great this autumn for rides where I put on the vest and never take it off. I'm a huge fan of vests, and this one is kind of in the Gabba territory in terms of weight and conditions, but it does pack down a touch better to be put in a jersey pocket if needed. Ultimately I probably did not need this vest, but at the price it was going for I could not refuse. I'm 6' and 165 lbs with a fairly small chest at 38 and the vest fits well over a LS jersey and baselayer. Snug, but not restrictive.