I started using them since the 80s , first one was the white helly hansen then red even black and my present one is red but covered in grey and black liquid rubber. Cos after a few years water seeps threw the non pourus fabric ! Allways changed the latex neck to a neopren one with a hood , not the ankles or wrists because i felt fine with them . I am the only one at our local spot who uses one but in winter l'm the only one dry and warm at the end of the session ! Yes it's not as water or air dynamic as neopren but for winging and paddle and funboard it's fine . Would not surf in it though !