Bought this for kayaking on inland waterways as the water can be cold even on hot days. The design let's me move my arms freely and not too thick that I get too warm. Comfortable to wear and easy to put on/take off. I'm 5'9, 140lbs and 32 inch waist. Size chart said a M would fit me best and it was spot on. Good quality and price. Would recommend.

It looks good for open water swimming, plenty of arm movement and a sensible thickness. However, I bought M based on the size guide and it was too small. I'm male 68kg, 5'10" with an athletic build and it was too restrictive around the chest and very difficult to zip as a result. It would be ideal for a slim teenager in my opinion.