Here is the size chart for selecting your new SEAC wetsuit. These models primarily use your chest measurement and weight to ensure the best fit.
If you find yourself unfortunately between two sizes, choose the size where you meet the most measurements (height, weight, chest). Generally, the most crucial factors are your weight and chest measurement, as these are vital for the suit's functionality.
A wetsuit should not fit too loosely. If many air pockets or "bags" form around the suit, it is too large for you and will lose its insulating ability.