Ski Crampons are usually an afterthought until you need them, and then you REALLY need them. Be proactive and buy them now, even if they sit in your pack for half the season, you'll breathe a sigh of relieve when you finally pull them out. The G3 ION Ski Crampons fit the new G3 ION bindings exclusively, and release with a novel cable pull that's way easier than trying to slide them out of the slot laterally.