Short answer: the Huading 500ml Sports Water Bottle is a double-wall stainless steel bottle (SUS304 inner liner and outer shell) with a PP lid and a food-grade silicone seal. It is rated to keep contents at 55℃ or above for 12 hours, and it is built for gyms, team training, commuting and outdoor use. It is sold to brands and distributors with a minimum order of 3,000 pieces and full colour, logo and artwork customisation.
Huading 500ml Sports Water Bottle (product image from huadingss.com).
Specifications at a glance
| Item | Specification | What it means for you |
|---|---|---|
| Capacity | 500ml | One session's drink for most workouts, with a refill for longer ones |
| Inner liner / outer shell | SUS304 / SUS304 | Austenitic stainless steel on both sides of the vacuum gap |
| Lid | PP (polypropylene) | Light, and the lid does not conduct heat to your hand |
| Seal | Food-grade silicone | Leak resistance depends on this part staying seated and clean |
| Heat retention | 12 hours, ≥55℃ | Hot drinks stay warm through a full day (see the test-condition note below) |
| Colour finish | Spray painting or powder coating, custom colours | Match brand or team colours |
| Branding | Custom logo; 3D printing or heat-transfer designs | Full-surface artwork is possible |
| Minimum order | 3,000 pcs | Suited to brand, promo and distributor programmes |
Weight, outside diameter, height and lid thread type are not published on the product page. Ask for them when you request a sample, especially if the bottle must fit a bike cage, bag pocket or vehicle cup holder.
Why 500ml suits sport and training
Fluid needs depend on how hard and how long you train, the temperature, and your body size. The US Centers for Disease Control and Prevention notes that people who are more physically active take in more water per day, and its national survey data show that rising pattern across activity levels.[1] Earlier CDC guidance advises drinking during prolonged or vigorous activity and not waiting for thirst.[2]
Our practical reading of that guidance: 500ml is a capacity you will actually carry. It fits a bag side pocket, a gym rack and many cup holders, and you can finish it in one session or refill it once on a longer one. A larger bottle holds more but is heavier and tends to be left in the car. Pick the size you will bring every time. The product page also lists team training, campus life and work from home among its intended uses, so this bottle is meant to be a daily carry as well as a sport bottle.
Materials: what SUS304, PP and silicone each do
SUS304 stainless steel (liner and shell). SUS304 is the Japanese designation for the 18/8 chromium-nickel family; in Chinese national-standard terms it generally corresponds to 06Cr19Ni10 (S30408). Huading's own travel-mug page describes its stainless steel as food-grade 18/8 that resists rust, corrosion and flavour transfer.[3] Using the same grade for both walls keeps the weld and the vacuum gap consistent and gives the exterior a hard surface for powder coating or spray paint.
Food-contact rules to know. In China, metal food-contact articles fall under GB 4806.9-2023, which came into force on 6 September 2024 and replaced the 2016 edition.[4] It requires migration testing of articles intended for repeated use.[5] In the United States, silicone seals intended for repeated food contact are addressed by FDA 21 CFR 177.2600.[6] The product page states that the seal is food-grade but does not list a specific test report for any market. If you sell into the EU, US or Japan, request the migration or compliance reports for your destination before you place a bulk order.
How to read "12 hours, ≥55℃"
The vacuum layer between the two steel walls removes almost all heat transfer by air, so the liquid loses heat mainly through the lid and the seal. That is why lid and gasket quality matter as much as the steel.
The rating means the contents are still at 55℃ or warmer after 12 hours. Two caveats help you compare bottles fairly:
- The page does not state the starting water temperature or the room temperature of the test. Hot-retention figures are only comparable when those are the same, so ask for the test method.
- No cold-retention figure is published. Vacuum insulation slows heat transfer in both directions, so the bottle should keep cold drinks cold, but treat that as an expectation to confirm with a sample, not as a rated claim.
Do not compare this figure directly with the 6-hour ratings on Huading's 500ml Lightweight Cup (see Table 2): the two use different time windows and temperature thresholds.
Design details that decide everyday satisfaction
- Quick-drink opening. The product page lists a quick-drink design, which lets you drink mid-exercise without unscrewing the whole lid. Check the lid mechanism on your sample for one-handed use and for how it feels at the lips.
- Leak-proof, not "toss-it-in-a-bag-upside-down" proof, until you test it. Fill the sample with water, close the lid, and leave it on its side in a bag for an hour. A seal that is seated correctly should pass.
- Shock resistance. A stainless body survives drops that crack plastic, but a hard landing can dent the shell or scuff the coating. A dent does not always break the vacuum, but check the heat retention of any visibly deformed bottle.
- Cleaning. A smooth stainless liner and a removable silicone seal are easy to keep hygienic. Remove the seal periodically, because residue collects under it first.
- Carbonated drinks and sealed hot liquids. Sealed vacuum bottles are generally not designed for fizzy drinks. Confirm with the supplier before using them, and open the lid slowly after filling with something very hot.
Choosing between Huading's 500ml models
| Feature | 500ML Sports Water Bottle | 500ml Lightweight Cup |
|---|---|---|
| Capacity | 500ml | 200ml or 500ml |
| Materials | SUS304 liner and shell, PP lid, silicone seal | Same |
| Published heat retention | 12 hours ≥55℃ | 500ml: 6 hours ≥68℃ |
| Emphasis | Sport, training, quick-drink use | Ultra-lightweight, commuting, travel |
| Minimum order | 3,000 pcs | 3,000 pcs |
If your customers train, pick the sports bottle. If weight and a slim profile come first, look at the lightweight cup. For larger or kid-specific formats, see the travel mug range, the kids cup range, or the straw cup with hard spout.
Customisation for brands and teams
The bottle can be customised in colour (spray painting or powder coating), logo, and artwork (3D printing or heat transfer). Huading's OEM/ODM service also covers custom lids and packaging, and works from your own designs or samples. Practical tips:
- Send Pantone references or a physical colour sample, and approve a pre-production sample before the bulk run.
- For printed artwork, ask for rub and wash test results. Sports bottles are scratched against gym bags and washed often.
- Powder coating usually gives a more tactile, grippy surface and spray painting a smoother one; ask for both finishes on samples and judge them in the hand.
About the manufacturer
Jiaxing Huading Vacuum Flask Technology Co., Ltd. was established in 2002 and is based in the Pinghu National Economic Development Zone, Zhejiang, China. According to its company profile, the plant covers 25,600 square metres and employs 480 people, and sales reached 210 million RMB in 2025 with a 2026 target of 250 million RMB. The company lists ISO 9001 and ISO 14001 management systems and OHSAS 18001, plus 19 valid patents (see qualifications and patents). Products are exported to more than 100 countries and regions, including Japan, the United States, Europe and South America.
On the production side, its smart manufacturing page describes an integrated flow: tube making, metalworking, welding, vacuumisation, polishing, painting and assembly, with in-house mould making and about 50 new products developed per year. In 2022 the company invested over 20 million RMB in a metalworking automatic line, three assembly lines and five tube-making machines. For a buyer, in-house tooling and a single site for steel forming, finishing and assembly generally mean shorter sampling loops and fewer hand-offs between suppliers.
Pre-order checklist
- Request weight, outside diameter, height and lid thread details.
- Ask for the heat-retention test method (start temperature, ambient temperature, fill level) behind the 12-hour, ≥55℃ rating.
- Request food-contact reports for stainless steel, PP lid and silicone seal for your destination market.
- Run your own leak test, drop test and, if relevant, cold-retention test on samples.
- Approve colour and printed artwork on a physical sample before mass production.
- Confirm lead time and packaging at the 3,000-piece minimum.
Care and maintenance
The product page's maintenance section is blank at the time of writing, so we follow the care guidance Huading publishes for its vacuum-insulated stainless steel drinkware: wash before first use, hand wash with mild soap, avoid abrasive scrubbers and harsh chemicals, and never microwave the bottle.[3] Take out the silicone seal now and then to rinse and dry it, and store the bottle with the lid off so air can circulate.
Frequently asked questions
Is the bottle made of food-grade stainless steel?
Yes. Both the inner liner and the outer shell are SUS304, and the seal is food-grade silicone. Ask for the compliance report that matches your sales market.
How long does it keep drinks warm?
The published rating is 12 hours at 55℃ or above. Test conditions are not stated on the page, so confirm them with the supplier.
Can I add my own logo and colours?
Yes. Colours (spray painting or powder coating), logo, and 3D-printed or heat-transfer artwork can all be customised.
What is the minimum order quantity?
3,000 pieces.
