You don’t need ‘em until you do! You know that snow type. Too steep and firm to skin. Too punchy to boot. Ski crampons are the only fix. These shiny widgets from Salomon and Atomic work with the Shift binding. Slide the crampons in from the side and step on ‘em to engage the firm snow. Hopefully this stops you from sliding to the bottom of the mountain. Say no to snow-rash with the Salomon Shift Ski Crampons.
*Your skis cannot be wider than this at the position of your ski crampons (just behind the toe piece).