WhatsApp
8619105797737
E-mail
Sales5@chinajianyang.com
Products

316 Leakproof Flask

Discover the ultimate combination of durability, style, and performance with our premium 316 Leakproof Flask. Engineered for the modern adventurer, this flask is perfect for a wide range of uses, from daily commutes to epic outdoor excursions. Whether you need a reliable vessel for your drive, a robust companion for your hiking trips, or a sleek container for the office, our collection has you covered. Explore our versatile models including the compact 316 Flask 500ml, the popular mid-sized 316 Flask 750ml, the rugged 316 Outdoor Flask built for the elements, and the convenient 316 Car Flask designed for on-the-go hydration. Each flask is constructed from top-grade 316 stainless steel, ensuring your beverages stay at the perfect temperature for hours while being completely protected from leaks and spills.


The 316 Leakproof Flask isn't just another drinkware item; it's a meticulously crafted tool designed for those who demand the best. Its core strength lies in the superior 316 stainless steel construction. Unlike common 304 stainless steel, 316-grade contains molybdenum, which significantly enhances its resistance to corrosion from chlorides, acids, and saline environments. This makes the 316 Leakproof Flask exceptionally durable and ideal for holding everything from water and coffee to acidic juices and sports drinks without any risk of metallic taste transfer or degradation. The advanced vacuum insulation technology creates an airless space between the double walls, effectively locking in temperature. Enjoy piping hot coffee throughout a winter morning or keep water refreshingly cold during a summer hike. The heart of its functionality is the guaranteed leakproof seal. Featuring a precision-engineered threaded cap with a high-quality silicone gasket, the 316 Leakproof Flask can be tossed in a backpack, gym bag, or car cup holder with absolute confidence, ensuring not a single drop escapes.

Technical Specifications & Features

Below is a detailed breakdown of the key specifications and features that define the 316 Leakproof Flask:

  • Primary Material: 316 Stainless Steel (Interior & Exterior)
  • Insulation: Double-Wall Vacuum Insulation
  • Leakproof Mechanism: Screw-top lid with integrated food-grade silicone gasket
  • Temperature Retention: Keeps drinks hot for up to 12 hours and cold for up to 24 hours*
  • Finish: Brushed stainless steel with a durable, sweat-proof exterior coating
  • Capacity Options: Available in multiple sizes to suit different needs
  • Mouth Opening: Wide mouth for easy filling, cleaning, and adding ice cubes
  • Dishwasher Safe: Yes (Top rack recommended for longevity)
  • BPA-Free: 100% free from BPA and other harmful toxins
Model Capacity (ml) Height (cm) Diameter (cm) Weight (g, empty) Best For
316 Flask 500ml 500 21.5 7.0 280 Short trips, kids, light packers
316 Flask 750ml 750 24.8 7.8 380 Full-day hydration, office use, most popular size
316 Outdoor Flask 1000 27.5 8.2 450 Hiking, camping, sports, extended adventures
316 Car Flask 750 24.8 7.8 380 Commuting, road trips, fits standard car cup holders

*Performance may vary slightly based on ambient conditions and initial beverage temperature.

Related Products

Hot Products

  • Travel Mug with Straw

    Travel Mug with Straw

    In everyone's heart resides a commuter, traveler, and urban explorer. Jianyang Customized West Loop travel mug with straw， Capacity of 16 ounces (approximately 473 ml), equipped with an easy to clean cup lid, designed specifically for every journey. This insulated coffee cup adopts leak proof technology to prevent leakage and overflow, making it the best water cup to carry when going out. Simply press the button to drink, and release the button after each sip to seal. Jianyang vacuum insulation technology can keep liquids warm for up to 11 hours or cool for up to 24 hours. After drinking, the easy to clean cup lid can be fully opened, making it convenient for you to thoroughly clean every corner of the cup body.
  • Double Water Bottle

    Double Water Bottle

    Are you still looking for a daily double water bottle that combines aesthetics, insulation, and portability? Still struggling with how much capacity to choose for insulated cups in different scenarios? Jianyang's durable double-layer stainless steel insulated cup with handle covers multiple capacity specifications and is suitable for use in home, commuting, and outdoor scenarios; Adopting vacuum temperature locking technology combined with food grade stainless steel material, it provides long-lasting insulation for hot and cold drinks, comes with an integrated handle for easy carrying, and is sealed upside down without water leakage. As a strong manufacturer at the source, we support spot wholesale, customized OEM, stable domestic and international shipments, and undertake foreign trade orders all year round. Our quality and supply capabilities are double guaranteed. Whether for personal use or bulk procurement, we are the preferred choice with high cost-effectiveness!
  • Inox Coffee Pot

    Inox Coffee Pot

    The inox coffee pot is produced by Jianyang factory, which has many years of experience in manufacturing insulated vessels, and has a complete supply chain system and quality control process. From raw material procurement to finished product delivery, multiple testing standards are passed, supporting small batch customization and rapid sampling to meet the personalized needs of customers from different channels. The factory is equipped with automated production lines and a professional quality inspection team to ensure that every product meets industry-leading standards in appearance, functionality, and safety.
  • Stainless Water Bottle

    Stainless Water Bottle

    This stainless water bottle produced by Jianyang features a brand new color scheme, and of course, we can also customize colors that suit your preferences. The bottle body is coated with scratch resistant Klean Coat powder, which is very durable and safe for both humans and the environment. Welcome to customize products with us!
  • Magnetic Vacuum Stainless Steel Water Flask

    Magnetic Vacuum Stainless Steel Water Flask

    Transform your reusable water bottle into a multifunctional artifact! Jianyang's fashion Magnetic Vacuum Stainless Steel Water Flask combines the functions of a phone stand and tripod, allowing you to stay in touch while keeping hydrated. Whether it's fitness, office, or outdoor exploration, it's your favorite product. Welcome to our factory for observation and product selection!
  • Stainless Bottle

    Stainless Bottle

    Customized stainless bottle is a major feature of Jianyang, with a modern style and excellent performance that can meet any of your needs. The twist cup lid only needs to be quickly rotated a quarter turn to close, with good sealing to ensure no water leakage, and the wide cup mouth can accommodate a large spoon for easy cleaning. The centrally located water outlet and conical base for easy cup holder make the design of this water bottle more upscale. The detachable carrying ring can easily hang keys or hang a kettle on the fitness bag.
  • Related Blog
  • Reviews

  • What Makes Coffee Mugs Essential for Everyday Life?

    Coffee mugs are more than simple drinkware. They influence taste perception, daily rituals, brand identity, and even emotional comfort. From materials and insulation to design and durability, choosing the right coffee mug can significantly improve daily coffee experiences at home, in offices, cafés, and promotional settings. This in-depth guide explores everything buyers need to know about coffee mugs, addresses common pain points, and explains how professional manufacturers like Yongkang Jianyang Metal Co.,Ltd. deliver reliable, functional, and stylish solutions for global markets.

  • Are Stainless Steel Food Containers the Ultimate Eco-Friendly Storage Solution?

    Stainless steel food containers have become the cornerstone of modern sustainable kitchens. But are they always the best option? This comprehensive guide examines every facet — from material safety and insulation to affordability and weight. We present unbiased pros & cons, compare grades (201 vs 304), and answer burning questions. Discover why manufacturers like Yongkang Jianyang Metal Co.,Ltd. are investing heavily in this category.

  • Are Stainless Steel Food Containers Safe for Hot and Cold Food Storage?

    Discover if stainless steel food containers are safe for hot and cold food storage.

  • Why Is a Pink Thermos Flask Becoming the Perfect Choice for Stylish and Healthy Hydration

    A Pink Thermos Flask is more than just a drink container; it combines temperature preservation, fashionable design, and everyday convenience. This article explores why Jianyang has developed high-quality pink thermos flask solutions that meet modern lifestyle needs. From stainless steel construction and insulation performance to application scenarios and purchasing considerations, this guide provides valuable insights for consumers, retailers, and global buyers looking for reliable hydration products.

  • The main characteristics of Beer mug.

    Traditional beer mugs are usually made of glass, ceramics or stone tools, which are durable and can maintain the temperature of the beer. In addition, some beer mugs are also...

  • The classification of Coffee mug.

    The most commonly used coffee utensils, including white porcelain, bone China, etc. The surface is smooth, the texture is light, the color is soft, and the glaze can...

Send Inquiry

X
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies.Privacy Policy
RejectAccept