Salewa Vayu 2.0, size 59-63cm, red. Purchased in the summer of 2022 from Kojitsu Sanso and used in rocky terrain. Since I didn't use it during the 2025 season, it has effectively been used for three seasons. I am selling it because I bought a new helmet. The following is a quote from the manufacturer's website: 　　↓↓ A lightweight helmet with high strength to protect against falling rocks thanks to carbon nanotechnology. The inner shell has wide ventilation for breathability, easy size adjustment with a dial, and a chin strap with a magnetic buckle for easy one-handed operation. ▼ Weight: 320g ▼ Size: Head circumference: 59-63cm As shown in the photos, there are minor scratches. These were caused by rubbing against rocks while attached to the back of a backpack, and are not impact damage from falling rocks. Please consider this information before purchasing. #MountainHelmet #Salewa #LightweightHelmet