KOYASU® Ti-Zero™ 16oz Titanium Tumbler [Cosmic Amethyst] - Premium Aesthetic Gift for Her. Healthy Zero-Taste Tea Flask. Lightweight, Hypoallergenic Sparkle Gemstone Finish for Wellness

Specifications

• AEROSPACE-GRADE PURE TITANIUM & LIFETIME WARRANTY – The ultimate 16oz capacity for rugged outdoor survival and long-distance trekking. Built entirely from medical-grade Ti-Zero titanium, it is 42% lighter than stainless steel and engineered to withstand the harshest environments. Naturally BPA-free and chemically inert, it ensures zero metallic taste or odor retention. We proudly offer a LIFETIME WARRANTY on the titanium body—a professional-grade investment built for a lifetime of adventure.
• Aerospace-Grade Titanium Body – Lightweight & Safe Crafted from aerospace-grade titanium, 42% lighter than stainless steel. Naturally BPA-free, non-toxic, and flavor-neutral—delivering pure taste with every sip.
• Biocompatible & Hypoallergenic – Trusted by Science Titanium is used in surgical implants and dental tools for a reason: it's biocompatible, non-reactive, and ultra-safe—even for sensitive users.
• Leak-Proof Lid – Designed for Commuting & Travel Features a dual-use lid with both flip-top and straw options. Fully sealed to prevent leaks—perfect for bags, backpacks, or your car’s cup holder.
• Double-Wall Insulation – Keeps Drinks Hot or Cold Engineered for thermal stability. Keeps beverages at the right temperature without sweating or burning your hands.
• Wide Mouth & Seamless Interior – Easy to Clean Designed with convenience in mind. The wide opening allows effortless filling and rinsing—no need for harsh chemicals or bottle brushes.
• NO COATING, NO PAINT, NO WORRIES – Featuring a 100% Raw Titanium Surface with a Crystal Silver finish that showcases the natural, rugged beauty of the metal. With no paint to scratch or peel, it is engineered to handle the abuse of the trail and looks better with every adventure. Because this finish is permanent and eco-friendly, we proudly offer a Lifetime Warranty on the cup body—ensuring your investment stays pristine for a lifetime of use.
• Exceptionally Durable & Lifetime Warranty – Built for daily use and a lifetime of adventure. Our 100% pure titanium body is naturally corrosion-resistant and engineered to last for generations. We stand behind our craftsmanship with a Lifetime Warranty on the titanium flask body against manufacturing defects—Koyasu mugs are built to last.
• Elegant Finish – For Gifting or Personal Style The minimalist ice-crystal texture and natural titanium tones make this a thoughtful gift for travelers, professionals, or health-conscious users.
• Eco-Friendly & Reusable – Zero Waste Alternative Ditch single-use plastics. Koyasu mugs are sustainable, dishwasher safe, and endlessly reusable—good for you and the planet. Versatile for Any Setting – Office, Home, Gym, Outdoors One mug, everywhere. From morning coffee runs to remote work setups, gym hydration, or weekend camping—Koyasu fits every lifestyle.