Premium 350ml Double-Wall Vacuum Insulated Stainless Steel Thermos

Sleek brushed 18/8 food-grade stainless steel construction with durable copper vacuum seal for 12-hour heat retention. Ergonomic leak-proof lid features precision-engineered threading and integrated tea strainer.

Multi-functional design includes detachable BPA-free plastic cup for dual usage as thermos or portable tumbler. Mirror-polished interior resists stains and odors from coffee/tea.

Ideal for business travel, outdoor adventures, or office use. Rust-proof and condensation-free exterior maintains elegant appearance. Weight-balanced base prevents tipping.

Commercial-grade insulation outperforms standard flasks with 30% improved thermal efficiency. Seamless laser-welded interior eliminates flavor transfer.

Exclusive wholesale pricing for bulk orders. Complies with FDA/EC1935 food safety standards. Available in custom branding options for corporate gifts.