Thank you for viewing the product. It has been used for one year, so there are signs of use. Thank you for your understanding of this being a used item. A lightweight and portable aluminum bottle. ・Brand: SIGG ・Model Name: SUKALA ・Color: Navy Black ・Material: Aluminum ・Capacity: 1L [Product Description] ●The textured surface of the container prevents slipping even with sweat during lessons! ●The body has no seams, making it lightweight and durable. ●The inside of the container has a special coating that does not affect the taste of drinks or retain odors. ●BPA-free (tested and cleared for absence of harmful chemical BPA: endocrine disruptor). ●The container and cap are highly airtight, preventing even carbon dioxide gas from escaping. ●Can be used for any beverage, including tea, sports drinks, fruit juices, and carbonated drinks, in addition to hydrogen water. ●Even if the container is dropped and dented on the outside, there is no worry of the inside cracking or the coating peeling off.