Using Progressive Full-Stretch technology for enhanced durability, fit, feel and performance, the 5mm Velocity is a great warm water wetsuit for those looking for additional warmth and comfort in the water. If you are not sure about your size ... please send us an email !! We will know what size you need. This suit fits a little smaller than the other Bare wetsuits. Typically 2 sizes smaller. This suit is discontinued so it is an amazing value !