im a rather large mamal. 360lbs. im a former semi pro hockey player trying to get back in shape so i can start training for martial arts agin in the fall and im having a hard time shdding weight due to lack of mobility. gut keeps getting in the way. i see that the sizes go rather high on this one which is awesome but im not sure im exactly a 5x kinda guy. could someone give me an idea about how large the plus sizes are?