“I am 5 feet 7 inch tall, weight 140 and consider my self slim. I ordered SM because the table recommended it and it was spot on! The video provided on how to put the wetsuit was very useful. I took my first Open Water swim on a lake in Colorado with cold water ( which I don't like) and this wetsuit keep me warm. It helped to correct my form and made me feel safe because it helped me float without effort. Very very happy with my purchase. Absolutely recommend this.”