KOYASU® Ti-Zen™ Titanium Travel Coffee Mug - 12oz Ultralight Insulated Tumbler - Backpacking Gear & Camping Cup - Rugged Metal Hiking Mug - Survival & Outdoor Essential - Crystal Silver

Specifications

• AEROSPACE-GRADE PURE TITANIUM & LIFETIME WARRANTY – The perfect 12oz capacity for specialty coffee lovers and ultralight hikers. Built entirely from medical-grade Ti-Zen titanium, it is 42% lighter than stainless steel and fits most car cup holders for a seamless commute. Naturally BPA-free and chemically inert, it ensures zero metallic taste. We proudly offer a LIFETIME WARRANTY on the titanium body—an investment built to last through every adventure.
• WHY TITANIUM — THE KOYASU MATERIAL COMMITMENT Titanium is rarer than stainless steel and far more demanding to extract, refine, and form. Its high melting point and complex processing require advanced manufacturing and strict quality control. KOYASU chooses titanium not because it is easy or affordable—but because it delivers unmatched purity, durability, and long-term trust for everyday life.
• 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. The Ti-Zen interior is perfect for outdoor hydration, ensuring water from any source stays pure.
• DOUBLE-WALL VACUUM INSULATION – Keeps Drinks Hot or Cold. Engineered for thermal stability. Keeps coffee hot at the summit or water ice-cold on the trail. The double-wall construction prevents condensation, keeping your grip dry.
• WIDE MOUTH & 100% LEAK-PROOF LID — DISHWASHER SAFE & EASY TO CLEAN The wide-mouth opening allows effortless filling from streams or kettles. The solid titanium body is dishwasher safe and rinses clean easily in the wild—no lingering odors, no residue buildup.
• 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.
• Exceptional Durability & 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.
• RAW CRYSTAL FINISH – For the Ultralight Hiker. The unique "Ice-Crystal" texture is grown from the titanium itself. It provides superior grip even with gloves on and reflects the raw, industrial beauty of high-performance gear.
• ECO-FRIENDLY & REUSABLE – Zero Waste Alternative. Leave no trace. KOYASU mugs are sustainable alternatives to disposable plastic bottles, designed to last a lifetime of expeditions.
• VERSATILE FOR ANY SETTING – Outdoors, Camping & Survival. One mug, everywhere. From campfire coffee to alpine hydration, the KOYASU Ti-Zen is an essential part of your survival kit and backpacking loadout.