I tried out the bioseals. On these particular dives I had borrowed a 18w HID (a different story but all i can say is WOW) so my wrists were doing a bit of flexing here and there. I came up to find my wrists bone dry. For me, because I have pronounced tendons I usually channel water at the wrist seal. The bio seal completely sealed off my tendons and when they are on you don't even know you are wearing them. So if this bothers anyone else you should really consider these.