Insulated Straw Cup 485 ml with 316 Stainless Steel Liner – 3 Colors (Green, Pink, White)
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Insulated Straw Cup with 316 Stainless Steel Liner – 485 mlDual-purpose thermal tumbler with silicone straw and carry handle
This 485 ml (about 16.4 oz) insulated straw cup features a food-grade 316 stainless steel inner liner that keeps beverages cold or hot for hours. The double-wall construction provides thermal insulation, while the silicone straw and leak-resistant lid make it suitable for daily commutes, gym sessions, and outdoor activities. Available in three color patterns (Avocado Green, Peach Pink, Moonlight White), each cup includes a silicone rope handle for easy carrying. Designed for adults and teens who need a portable, reusable beverage container for water, iced coffee, smoothies, or tea.
- 316 stainless steel liner resists corrosion
- Keeps drinks cold for 6-8 hours
- Leak-resistant silicone lid and straw
- Rope handle for portability
Food-Grade 316 Stainless Steel
The inner liner is made from 316 stainless steel, which has superior corrosion resistance compared to 304 steel. This material does not retain odors or flavors, ensuring every drink tastes clean.
Double-Wall Thermal Insulation
The cup's double-wall construction creates an air gap between the outer shell and the stainless steel liner. This design keeps cold drinks cold for 6-8 hours and hot beverages warm for 2-3 hours, while the exterior remains comfortable to hold.
Silicone Straw and Spill-Proof Lid
The included silicone straw is soft, reusable, and safe for teeth. The snap-on lid fits snugly to prevent leaks when the cup is upright in a bag. A small vent hole allows smooth liquid flow without pressure buildup.
Carry Handle and Portable Design
Each cup includes a durable silicone rope handle looped through the lid. The 485 ml capacity fits most car cup holders (about 3 inches or 7.6 cm base diameter), and the lightweight build makes it easy to carry all day.
Construction and Material Details
316 Stainless Steel Inner Liner
The inner vessel is stamped from 316 grade stainless steel, known for its high nickel and molybdenum content. This alloy resists pitting and corrosion from acidic beverages (lemon water, orange juice, coffee) better than standard 304 steel. The smooth interior surface has no seams or welds in contact with liquid.
Outer Shell and Pattern Print
The outer layer is made from BPA-free plastic with a heat-transfer graphic print. The patterns (geometric shapes, dots, and wave designs) are fade-resistant and dishwasher-safe. The plastic does not sweat or form condensation when filled with cold drinks.
Silicone Components
The straw, lid gasket, and rope handle are made from food-grade silicone rubber. Silicone is flexible, does not crack in cold temperatures, and withstands repeated washing. The straw measures about 8 inches (20 cm) long and has a 0.3-inch (8 mm) inner diameter for smooth beverage flow.
Capacity and Dimensions
The cup holds 485 ml (about 16.4 oz) when filled to the lid brim. External dimensions are approximately 3.1 inches (7.9 cm) diameter at the base and 6.7 inches (17 cm) tall with the lid and straw installed. The empty weight is about 10 oz (283 grams).
Who This Cup Is For
Made for
- Daily commuters who need a spill-resistant cup for the car or public transit
- Office workers who want to keep water or iced coffee at their desk for hours
- Gym members who prefer a straw for hydration during workouts
- Students who carry beverages in backpacks between classes
- Parents who pack cold drinks for kids' sports or school lunches
- Travelers who need a lightweight, reusable cup that fits in a day bag
Not for
- Carbonated beverages (the lid vent may release pressure and cause spills)
- Dishwasher use on high-heat dry cycles (hand wash lid and straw recommended)
- Hot liquids above 180°F or 82°C (the plastic outer shell is not rated for boiling water)
- Users seeking a fully leak-proof tumbler for horizontal bag storage (this lid is spill-resistant when upright, not waterproof when tipped)
The numbers
Answered plainly
What is the difference between 316 and 304 stainless steel?
316 stainless steel contains 2-3% molybdenum, which provides superior corrosion resistance against acidic and salty liquids. 304 steel is sufficient for water, but 316 is preferred for coffee, citrus drinks, and long-term durability. This cup uses 316 steel for the inner liner.
Can I put hot coffee or tea in this cup?
Yes, but the maximum recommended temperature is 180°F (82°C). The stainless steel liner can handle hot liquids, but the plastic outer shell is not rated for boiling water. Hot drinks will stay warm for 2-3 hours due to the double-wall insulation.
Is the lid leak-proof if I lay the cup on its side in a bag?
The lid is spill-resistant when the cup is upright, but it is not fully waterproof when tipped horizontally. A small vent hole allows air flow for smooth drinking through the straw. For bag transport, keep the cup upright in a side pocket or cup holder.
How do I clean the straw and lid?
Rinse the silicone straw with warm soapy water after each use. For deep cleaning, use a straw brush (not included) or soak in a solution of 1 tablespoon baking soda and 2 cups water for 30 minutes. The lid and straw should be hand washed; do not expose silicone to dishwasher heat dry cycles.
Will the printed pattern fade or peel over time?
The pattern is applied using heat transfer technology, which bonds the design to the plastic outer shell. It is resistant to fading from normal hand washing and dishwasher use (top rack only). Avoid abrasive scrubbers that could scratch the print.
Can I use this cup for carbonated drinks like soda or sparkling water?
Carbonated beverages are not recommended. The lid has a small vent hole that may release pressure, causing fizzy drinks to spray or leak. This cup is designed for still beverages such as water, iced coffee, juice, and tea.
What is the purpose of the rope handle?
The silicone rope loops through the lid and serves as a carry handle. It allows you to hang the cup from a carabiner, wrist loop, or bag strap for hands-free transport. The rope is durable and does not stretch or fray with regular use.
How long does the cup keep drinks cold with ice?
In typical indoor conditions (around 72°F or 22°C), the double-wall insulation keeps drinks cold for 6-8 hours when filled with ice. Performance may vary in direct sunlight or high heat. The insulation is air-gap based, not vacuum sealed.
Choose Your Color and Start Hydrating
Select from Avocado Green, Peach Pink, or Moonlight White. Each insulated straw cup ships with a silicone straw, leak-resistant lid, and carry handle. Apple Pay, Visa, Mastercard and installment plans at checkout.
Insulated Straw Cup 485 ml with 316 Stainless Steel Liner – 3 Colors (Green, Pink, White)
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