1. LEAK-PROOF & SPILL-PROOF & SWEAT-PROOF – The compact lid makes no leakage. Royalford bottle wide mouth design, no worry about water spilling out when drinking in the car/train/boat/bus/plane. Your drink will truly stay as hot or cold as long as possible. Even filled with ice or boiling water, the bottle will never sweat or get hot when touching it!2. STAINLESS STEEL BOTTLE BODY – Royalford water bottle is made of high-quality food-grade stainless steel and are BPA free. Shatter Resistant and durable and maintains flavour and freshness of your drinks.3. VACUUM INSULATION TECHNOLOGY – The Wave bottles has a vacuum seal between the walls. This means your drink will stay at its ideal temperature for hours. Plus, the exterior will never sweat or get hot or cold to the touch.4. KEEP HOT & COLD – This stainless steel vacuum insulation keeps water hot and cold for a long time without sweating or condensation.5. NO LEAKING – The travel water bottle comes with a leak-proof, insulated, BPA and Phthalates free cap. The stainless steel lid will prevent any accidental spills.