Keep your beverages at the perfect temperature all day long with this premium Jiakang (JK) All-Steel Vacuum Sling Cup! Boasting a large 1100ml capacity, this high-performance thermos is built using food-grade 304 Stainless Steel (SUS 304) for unmatched durability, rust resistance, and zero metallic taste.Its advanced double-wall vacuum insulation keeps your tea, coffee, or soup piping hot, and your water or sports drinks ice-cold for 12+ hours. Designed for ultimate portability, it features a secure leak-proof lid and a sturdy, flexible sling strap—perfect for the office, gym, travel, or outdoor hiking. Available in sleek, modern metallic finishes (Bronze, Dark Grey, and Silver). Brand new in box. Excellent value for money!