Premium 304 stainless steel inner & outer walls ensure superior durability and rust resistance. Advanced vacuum insulation technology maintains temperature for 12 hours (hot) and 24 hours (cold). Ergonomic handle design provides secure grip with heat-resistant PP material. Leak-proof screw lid with silicone gasket prevents spills during transport. Mirror-finished surface resists fingerprints and scratches. Ideal for office commuters, outdoor adventures, and home kitchen use. Commercial-grade construction withstands daily heavy use in restaurants or catering businesses. BPA-free materials guarantee safe drinking experience. High-capacity 1-liter design perfect for all-day hydration. Minimalist aesthetic suits modern lifestyles with Pioneer"s signature 2035 N1.E series quality.