i got my mundial today and i got the a4
the pants fit me fine actually a lil baggy but the top looks huge on me idk what to do... try to shrink or send back for an a3
the new atamas do not shrink like the old school atamas..if it is 'huge' on you I would send back for other size as you will not get the shrinkage you need.
Even when it does shrink enough for a decent fit out of dryer it will grow during training.
I have always found a snug/tight fitting gi loosens up perfect once sweat gets in it. If it fits perfect in the locker room it will get baggy once stretching and pulling on it starts.