Aldi have superfine merino wool thermals sometimes. Wool thermals under clothes really help keep you warm and Aldi is not quite as good as the good ones but pretty decent for the price. Also if you end up in a bushfire wool underwear helps stop burns a little - my friend had a camping stove blow up on her and her woolen thermal top saved her a lot of damage... An infrared lamp will also warm you some. In a kayak Sharkskin??? i think has a range of stuff more wind and water proof than much... like a wet suit without the neoprene squish cannot breathe factor IIRC
