Products

Leakproof Sports Flask

Stay perfectly hydrated on all your adventures with a 304 Stainless Steel Sports Flask. Designed for the active lifestyle, this high-quality flask is engineered to be completely leakproof, ensuring your bag stays dry whether you're hitting the gym, running trails, or commuting to work. Its durable construction prevents flavor transfer and resists odors, so your water tastes clean and pure every time. Choose the ideal capacity for your needs from our range, including the compact 20oz Sports Flask, the versatile 32oz Sports Flask, or the high-volume 40oz Sports Flask. Each model features a secure, easy-to-use lid that provides a perfect seal every time, backed by premium materials built to last.


Every feature of the Leakproof Sports Flask is meticulously crafted for reliability and user convenience. The flask maintains your beverage at the desired temperature for hours, thanks to its superior vacuum insulation technology. The wide mouth opening allows for easy filling, cleaning, and adding ice cubes, while the comfortable, non-slip grip ensures it stays firmly in your hand during vigorous activity. Its sleek, modern design is not only aesthetically pleasing but also rust-resistant and easy to maintain.

Key Specifications of Our Leakproof Sports Flask

  • Material: Premium 304 Stainless Steel (18/8 food-grade)
  • Insulation: Double-wall vacuum insulation
  • Lid Type: Screw-top with silicone sealing gasket
  • Temperature Retention: Keeps drinks cold for 24+ hours, hot for 12+ hours
  • Features: Sweat-proof exterior, BPA-Free, Odor-resistant
  • Care Instructions: Hand wash recommended; dishwasher safe (top rack)

Available Models & Dimensions

Model Capacity Height (with lid) Diameter Weight (Empty)
Standard 20 oz (591 ml) 9.8 in (24.9 cm) 2.8 in (7.1 cm) 12.3 oz (349 g)
Popular 32 oz (946 ml) 11.2 in (28.4 cm) 3.6 in (9.1 cm) 17.6 oz (499 g)
Large 40 oz (1.18 L) 12.5 in (31.8 cm) 3.7 in (9.4 cm) 21.2 oz (601 g)

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.

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