1. LEAK-PROOF & SPILL-PROOF & SWEAT-PROOF - The compact lid makes no leakage. Geepas 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 - Geepas water bottles are made of high-quality food grade 304 stainless steel and are BPA free. Shatter Resistant and durable and maintains flavor 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 compact cap. The stainless steel lid will prevent any accidental spills.