I wear two boots:
Summer – Cloudveil 8x Boot – They are the lightest boots on the market I believe. They still manage to offer great support.
Winter – Simm G3 Guide Boots – These boots are more like a REAL boot than anything I have ever worn. They are heavier in the hand, but do not water load like other boots, so on the water they really aren’t any more tiring to wear than a boot half their weight. They also seem to keep my feet a lot warmer than the Korkers or Chotas I’ve worn in the past.