Premium stainless steel waterproof smart bottle with advanced thermal insulation technology. Dual-layer vacuum insulation maintains temperature for 12+ hours (hot/cold). Food-grade 304 stainless steel interior with BPA-free plastic lid. Smart app integration tracks hydration goals and bottle location via Bluetooth. Anti-slip silicone base and leak-proof locking mechanism. Ideal for outdoor adventures, gym sessions, and office use. Ergonomic carry handle with 360° rotating design. Matte finish resists fingerprints and scratches. Available in bulk wholesale quantities with industry-leading pricing. Custom logo printing available for corporate gifts and promotions.