The X- Protect features water repellent + a special labyrinth structure in order to keep water out of the reel body. This is 7 times more water-resistant than the CoreProtect technology. This makes the reel very suitable for 'rough' conditions like high waves (SW), rain, wading fishing; ways of fishing where it might happen the reel gets in touch with a lot of water. The gearing of the reel is stronger than before, the drag features cross carbon drag washers; all of this makes the reel suitable for heavy conditions. However; it can be used in any condition; it's a true all-round spinning reel in the sizes 2500-5000. The Sustain FI is a proud winner of ICAST 2017's ""Best Saltwater Fishing Reel""