This is a GRIVEL Air Tech New Matic EVO 12-point crampon, purchased new from an online mountaineering specialty store last year (December 2025). It's a lightweight, high-performance semi-automatic model (requires a heel welt). I used it for a day hike in the Yatsugatake Mountains in January of this year (about 3 hours), but I no longer have plans to use it, so I'm offering it for sale while it's still in good condition. It's been used for about 3 hours, so it's in very good condition, almost like new. However, it is a used item, so I would appreciate it if those who understand USED items would consider purchasing it. *The straps have not been cut or folded.* I used it with SCARPA hiking boots, size 27.8cm. - Brand: GRIVEL - Model Name: AIR TECH New Matic Evo (Purchase Price: ¥26,600) - Accessories: Instruction manual, original box - Color: Yellow - Type: Semi-automatic crampons 【Mounting Requirements】 ⚠ Requires hiking boots with a heel welt (a protrusion to hook the crampons onto) for secure attachment.