Pure Titanium Pocket Vacuum Insulated Flask – BlackInTi
The BlackInTi Pocket Vacuum Insulated Flask is a ultra-compact vacuum-insulated flask made from 99.8% pure titanium, featuring a deep textured obsidian body available with a choice of a sleek black, shimmering silver, or premium gold cap. Part of BlackInTi's signature (XIAOHEIBEI) series, this featherlight pocket companion is designed to slide effortlessly into everyday life, keeping drinks perfectly hot or cold for over six hours.
An exercise in tactile minimalism. The BlackInTi Pocket tumbler balances organic texture with industrial precision, featuring a sleek, tapered silhouette crafted to sit discreetly in a pocket or reward a quiet glance across the desk.
Why you'll love it
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Striking premium finishes: The textured obsidian black body pairs beautifully with your choice of a matching black, striking silver, or rich gold cap, creating a sophisticated visual contrast.
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Advanced thermal control: Double-wall vacuum insulation keeps beverages perfectly hot or refreshingly cold for over 6 hours.
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Pure titanium infuser: Naturally corrosion-resistant with no metallic taste and no lingering odors — just the pure flavour of your tea or coffee.
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Honest material: 99.8% pure titanium, no coating, naturally antibacterial and roughly 45% lighter than high-strength steel.
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Ultra-portable pocket design: A compact, tapered silhouette engineered to slip seamlessly into small bags, suit pockets, or daily carry with zero bulk.
Specifications
| Capacity | 220 mL (7.4 fl oz) |
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| Weight |
≈4.94 oz (140g)
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| Dimensions | 2.36 × 2.20 × 5.51" (60×56×140 mm) |
| Structure | Double-wall insulated |
| Material | 99.8% Pure Titanium |
Hand wash with a soft cloth and mild detergent to protect the artistic finish, and never microwave. Covered by TAIC's limited lifetime warranty.
Frequently asked questions
What is the BlackInTi (XIAOHEIBEI) series?
BlackInTi is an independent brand under the Noble Group, dedicated to all-black pure titanium products. Every piece is made from 99.8% pure titanium finished in deep obsidian, often with contrasting gold or dual-colour detailing. This Pocket tumbler draws its textured black body and curated accent caps from that same quiet, minimalist design language.
How long does it keep drinks hot or cold?
Over six hours. The double-wall vacuum insulation retains optimal temperatures even in a compact pocket format. The uncoated titanium infuser is naturally corrosion-resistant, ensuring tea or cold brews pour clean with no metallic taste or lingering odour.
How should I care for the artistic finish?
Hand wash it with a soft cloth and mild detergent to protect the textured finish, and never microwave it. The body is 99.8% pure titanium with no coating, so it is naturally antibacterial, corrosion-resistant and taste-neutral, making it the ideal choice for cold cuisine presentation or fresh daily hydration.
Browse the full BlackInTi all-black titanium collection, or read about the BlackInTi titanium desk mug. Independently SGS-tested 99.8% pure titanium, backed by TAIC's limited lifetime warranty on materials and workmanship.
The Material
The Material: 99.8% Pure Titanium
Pure. Healthy. Built for Life.
Medical-Grade Safety
Crafted to be biocompatible and naturally bacteriostatic, TAIC products are the ultimate choice for long-term wellness and daily health-safe use.
No Metallic Aftertaste
Being naturally bio - inert, titanium never leaches metallic ions.
Whether it’s coffee, tea, juice, or wine, it preserves the original flavor of your drink with zero metallic interference.
Eco-Crystalline Finish
A stunning surface achieved through natural oxidation coloring. Zero paint, zero toxins—just the raw, crystalline beauty of nature.
Total Corrosion Resistance
Immune to acid and alkali. Drink anything you want, from lemon water to soda, with an effortless, easy-clean experience.