【Brand New, High-Quality】 kassai. Copper Sierra Cup Titanium Handle 350ml 13,000 yen (tax included) This high-performance sierra cup features a copper body with high thermal conductivity and a titanium handle with low thermal conductivity. * Far superior thermal conductivity compared to stainless steel and aluminum. The biggest advantage is that it's less likely to burn food and heat is distributed evenly. I think it's perfect as a gift or a reward for yourself. I don't have many opportunities to go camping, so I'm offering it at a low price.