350ML Double-Wall Vacuum Insulated Stainless Steel Tumbler
1. Product Features
This 350ML double-wall vacuum insulated tumbler is a compact, versatile drinkware solution designed for daily use, on-the-go hydration, and promotional gifting. Its core construction combines a food-grade SUS304 stainless steel inner liner with a durable SUS201 stainless steel outer shell, striking the perfect balance between safety, corrosion resistance, and cost-effectiveness. The double-wall vacuum insulation eliminates temperature transfer, keeping beverages hot for up to 12 hours and cold for 24 hours, making it ideal for coffee, tea, water, or iced drinks throughout the day.
With a sleek, pocket-friendly profile measuring 6.5cm (diameter) × 6.5cm (bottom) × 15.7cm (height) and a lightweight 215g design, the tumbler fits easily in standard cup holders, backpack pockets, and small bags, offering uncompromised portability for commutes, office use, gym sessions, or weekend trips. The smooth, spill-resistant lid (available in multiple styles) provides a secure seal to prevent leaks during transit, while the narrow mouth design reduces spill risks and maintains temperature retention. The exterior surface supports a wide range of custom treatments, including powder coating, matte or glossy painting, silk-screen printing, heat transfer, and laser engraving, allowing full customization of colors, logos, and patterns to match any brand aesthetic. The tumbler complies with LFGB, FDA, and EU food safety standards, with materials tested to resist metal leaching and odor transfer, ensuring safe contact with all types of beverages. Additionally, multiple pre-designed styles (including festive, minimalist, and nature-inspired prints) are available from existing inventory, enabling quick order fulfillment for urgent projects.
2. Key Benefits
The 350ML tumbler delivers tangible value for both end-users and business partners. For consumers, the compact 350ML capacity strikes the perfect balance between portability and practicality, holding enough beverage for a full morning or afternoon without weighing down bags. The vacuum insulation maintains optimal beverage temperatures, reducing reliance on disposable cups and supporting sustainable habits. The SUS304 inner liner ensures no metallic aftertaste, while the durable 215g construction resists dents, scratches, and rust, extending the product’s lifespan. The leak-proof design and ergonomic size make it suitable for every lifestyle, from busy professionals to outdoor enthusiasts.
For business clients, the tumbler offers exceptional customization flexibility, allowing brands to create unique promotional products, corporate gifts, or retail merchandise that align with their identity. The 3000 MOQ balances accessibility for small-scale orders with scalability for bulk production, while existing inventory designs enable fast delivery in as little as 15 days, ideal for seasonal campaigns or time-sensitive projects. The competitive pricing, combined with compliance with global safety standards, ensures the product meets regulatory requirements for markets in Europe, the U.S., and beyond, reducing compliance risks. Additionally, the tumbler’s universal appeal (suitable for all age groups and use cases) drives high demand, making it a profitable addition to retail lines or a memorable branded gift that enhances customer loyalty.
3. OEM/ODM Services
We offer comprehensive OEM and ODM services tailored to your brand and market needs, with full support from concept to production. For OEM orders, we can customize the tumbler’s surface treatment (color, finish, printing), packaging (custom boxes, labels, inserts), and branding elements (logos, slogans, patterns) based on your provided designs. Our team works closely with you to refine artwork, recommend printing techniques, and ensure alignment with your brand guidelines.
For ODM projects, we provide end-to-end design support, including custom shape modifications (where feasible), lid design, and pattern development. We offer access to our in-house design library of pre-approved styles (including the festive Nordic-inspired “element cup” series) or can create entirely new designs based on your market research or target audience. All ODM designs undergo prototype testing to verify functionality, durability, and print quality before mass production.
Key customization options include:
- Surface: Powder coating, matte/gloss paint, silk screen, heat transfer, laser engraving, or raw steel finish
- Colors: Pantone-matched custom colors, gradient prints, or metallic finishes
- Packaging: Custom color boxes, white/brown boxes, gift sets, or eco-friendly packaging with your logo
- Accessories: Custom lids, straws, or cleaning brushes to complement the tumbler
- Certifications: We can provide test reports for LFGB, FDA, and EU standards upon request, ensuring compliance with regional regulations.
4. Order Process
Our streamlined order process ensures clarity and efficiency from inquiry to delivery:
- Inquiry & Consultation: Share your requirements (MOQ, customization details, delivery timeline, target market) with our sales team. We will provide a detailed quotation including pricing, lead times, and available customization options.
- Design & Sampling: If customization is needed, submit your artwork or select from our existing designs. We will create a pre-production sample for your review, with revisions allowed until approval. For inventory designs, sampling can be completed within 3–5 working days.
- Order Confirmation: Sign the sales contract and pay the required deposit (typically 30% of the total order value). Finalize all details including packaging, printing, and certification requirements.
- Mass Production: Our factory initiates production, with quality control checks at every stage (material inspection, welding, polishing, printing, assembly). We will provide regular updates on production progress, including photos/videos of the process.
- Testing & Certification: If requested, we will conduct third-party testing for LFGB, FDA, or EU compliance, providing full test reports before shipment.
- Inspection & Shipment: After production, we conduct a final quality inspection to verify quantity, workmanship, and printing accuracy. Once approved, the order is packaged and shipped via your preferred logistics method (FOB Ningbo/Shenzhen or door-to-door delivery).
- After-Sales Support: We provide post-shipment support, including tracking information, spare parts (if needed), and assistance with any product-related inquiries.
5. FAQ
Q1: What is the minimum order quantity (MOQ) for the 350ML tumbler?
A1: The standard MOQ is 3000 pieces. For orders using existing inventory designs, we offer flexible MOQs (minimum 500 pieces) depending on availability, with faster lead times.
Q2: What is the lead time for orders?
A2: For orders using pre-existing inventory designs, lead time is approximately 15 working days after deposit confirmation. For fully customized OEM/ODM orders (including new printing or packaging), lead time is 40 working days from sample approval and deposit receipt.
Q3: Can you provide test reports for LFGB, FDA, or EU standards?
A3: Yes, we can arrange third-party testing for LFGB (Germany), FDA (U.S.), and EU 1935/2004/EC standards. Test reports are available upon request, with testing costs borne by the client if required.
Q4: What customization options are available for the tumbler?
A4: We offer customization for surface treatments (color, finish, printing), logos/patterns (silk screen, heat transfer, laser engraving), packaging (custom boxes, labels), and accessories (lids, straws). We can also support custom shape modifications for large ODM orders (MOQ 10,000 pieces).
Q5: Is the tumbler leak-proof?
A5: Yes, the tumbler is equipped with a spill-resistant lid that provides a secure seal to prevent leaks during normal use. However, we do not recommend shaking the tumbler vigorously or turning it upside down for extended periods, as this may compromise the seal.
Q6: What is the difference between the inner and outer materials?
A6: The inner liner is made of food-grade SUS304 stainless steel, which is safe for direct food contact and resistant to corrosion from acidic beverages. The outer shell uses durable SUS201 stainless steel, which offers excellent scratch resistance and cost-effectiveness, ensuring the tumbler remains lightweight (215g) while maintaining structural integrity.
