ENGINEERED FOR EXTREMES: Built to last a lifetime. This mug is crafted from aerospace-grade TA1 titanium, making it incredibly durable, corrosion-proof, and nearly indestructible. The robust Froste finish resists scratches and fingerprints, maintaining its professional look through rugged daily use. ULTRALIGHT FOR MAXIMUM PORTABILITY: Every ounce matters. Weighing nearly half as much as steel alternatives, this travel mug is the ultimate choice for EDC (Everyday Carry), hiking, and backpacking. Reduce your pack weight without sacrificing performance or durability. 100% SPILL-PROOF & CUP HOLDER FRIENDLY: Total reliability on the move. The secure, screw-on lid creates an airtight seal, preventing any spills whether it's rattling in your backpack or sitting in your car. It's specifically designed to fit perfectly in standard car cup holders for a hassle-free commute. UNCOATED FOR HEALTH & TRUE TASTE: Experience the benefit of pure, inert metal. The uncoated interior means no chemicals, no hidden linings, and absolutely no metallic taste leaching into your drink. It’s the safest and purest way to enjoy your beverages, hot or cold. ALL-WEATHER VACUUM INSULATION: Dependable performance in any environment. From a steaming hot coffee on a frosty morning hike to ice-cold water during a summer heatwave, the high-efficiency vacuum insulation keeps your drinks at the ideal temperature for hours on end. UNIVERSAL COMPATIBILITY & EASY CARE: Designed to integrate seamlessly into your life. The base diameter is engineered for a universal fit in most car, truck, and boat cup holders, as well as backpack side pockets. Cleaning is simple: the wide-mouth design allows for easy hand washing to maintain the integrity of the Froste finish. This is the low-maintenance, high-performance gear you've been looking for. This isn't just a mug; it's a piece of high-performance gear designed for a lifetime of use. The KOYASU Prime represents the next wave of premium drinkware, engineered from pure titanium to deliver unmatched reliability, whether you're at your desk or deep in the backcountry. The Froste Finish – Understated & Indestructible The Froste finish is a non-reflective, tactile matte surface engineered for rugged, everyday use. It minimizes fingerprints, resists scuffs and scratches, and maintains a clean, professional look. This is the definitive choice for those who value function and uncompromising durability. Aerospace-Grade Reliability Crafted from whole-body TA1 pure titanium, the same material trusted in fields as demanding as medical implants and aerospace engineering. This mug offers superior strength and safety, ensuring it can handle the rigors of any adventure. The Purity of Taste, Guaranteed Unlike stainless steel or coated cups, our uncoated titanium is completely inert. Its naturally formed oxide layer prevents leaching, preserving the authentic taste of your coffee, tea, or water. You taste your drink, not your mug—with zero metallic aftertaste or odors. Performance Without the Weight Offering the strength of steel at nearly half the weight, the KOYASU Prime is the ultimate upgrade to your Everyday Carry (EDC). The double-wall vacuum insulation provides elite temperature control, keeping your drinks hot or cold for hours while the exterior remains comfortable and condensation-free. A Smart Investment in Health & Sustainability Move beyond disposable cups and questionable plastics. This mug is a long-term investment in your health and the planet. It is corrosion-proof, odor-free, non-toxic, BPA-free, and fully recyclable—a testament to healthier living and sustainable value. Specifications: Product: KOYASU Prime Titanium Mug (Froste) Material: Whole-Body TA1 Pure Titanium Finish: Matte Froste (Anti-Fingerprint, Scratch-Resistant) Capacity: 12oz (355ml) Effective Daily Use Max Volume: 450ml (Filled to the Rim)