This is a **ski boot cover (also known as a ski boot warmer or ski boot mask)** to be worn on ski boots. It is an accessory designed for insulation and waterproofing, especially useful for preventing cold toes while skiing. Key features are as follows: Function: By wearing it over ski boots, it blocks cold air from wind and snow, increasing the insulation inside the boots. Effect: It can keep your feet warm and dry, and is expected to prevent freezing. Attachment/Detachment: Winter sports accessory made of 4.5 mil neoprene with a boot glove holding function, featuring one-touch or adjustable straps, side zippers, etc. I unpacked and put it on boots for the purpose of taking photos for the listing. ● Thank you for viewing. m(_ _)m ● Please feel free to ask any questions. ● Discounts are available for multiple purchases. ● Please refrain from price negotiation comments. ● Please also see my profile. ● Regarding shipping: For small items, thin clothing, small bags, etc., I will use "Yu-Packet Post" which involves folding and compressing items. Please understand that there may be creases. Also, due to shipping costs, I may change the shipping company from Yamato to Japan Post or vice versa without notice just before shipping, such as when combining items.