5’10” 205 lb athletic build A2 fit amazing. If you don’t carry a large amount of mass on your stomach and back this will be your size. The A2H is meant for heavier set people and it comes with lots of extra fabric in the back. I tried to shrink mine against the recommendation of customer support and it did not work out too well lol, listen to them, they are knowledgeable in their product. Had a great experience with shipping, customer support and the product. It’s very lightweight and comfortable, great for long sessions and hot days. Also they support the military/first responders. If you’re looking for a new gi give this one a shot 100%. If you don’t like it return it and get your money back just don’t wash it and keep the tags on. Unless you’re like me and are hard headed, my A2H one will get donated and will have a long happy life with someone else. But that speaks to their quality, I literally bought one that didn’t fit, but since it was so comfy I bought another one in my size.