Great product & initiative by small Aust company. Truthfully, when I first tried on after I received parcel, was disappointed. But … when I actually used in Winter over bathers to go to aqua aerobics, I was converted. Very warm, I can also put my hands inside to keep them warm. I already had long sleeve changing robe - another brand - but it’s not really warm enough for Winter or cold Autumn - Spring days. Think this one will also be great for the Beach & even to keep warm at home. Seemed a little expensive but it’s very well made and versatile. I expect to get many years wear so worth the investment. Case of you get what you pay for. S-M perfect fit for me, 161cm, 70kg.