Material and process Food-grade 304 stainless steel: the inner liner is made of 304 stainless steel, safe and odourless, corrosion-resistant, not rusty for long-term use, suitable for holding hot water, cold water, tea and drinks. Double-layer vacuum heat preservation: double-layer vacuum technology, effective isolation of temperature conduction, heat preservation and cold preservation effect is remarkable (heat preservation 6-8 hours/cold preservation 10-12 hours), suitable for all seasons. Precision welding process: seamless welding of the bottle body, excellent leakage prevention performance, inverted shaking does not drip, travelling with more peace of mind. Design Highlights 12 OZ mini capacity: capacity of about 355ml, lightweight and compact (height of about 18-20cm, weight of about 200-250g), easy to put into the side pocket of the backpack or the car cup holder, no burden to carry around. Trendy design: MATTE/GLOSSY TEXTURE: Available in matte frosted or high-gloss glossy finish, delicate touch, non-slip and wear-resistant. ANTI-SCOAL MOUTH: The mouth of the cup is made of food-grade PP material, rounded and smooth, anti-scald mouth when drinking, fits the curve of the lips.