I tried different ones in Dover when I was looking to buy one. The Airowear was the most comfy, but it's pricey (and I didn't want to order it in Europe, because I'm never good about taking measurements :) ). I ended up getting Woof vest from Adams Horse Supply. Really like it!
"Life isn't about waiting for the storm to pass: it's about learning to dance in the rain..."
"When we are no longer able to change a situation - we are challenged to change ourselves."
"How people treat you is their karma; how you react is yours."