Diamond-Shaped Insulated Thermos Cup 500ml | Stainless Steel

Stay Hot or Cold for Hours — Anywhere You Go

Meet your new everyday companion: the Diamond-Shaped Insulated Thermos Cup. Whether you're grinding through a long workday, commuting, or hitting the gym, this sleek 500ml vacuum-insulated tumbler keeps your drinks at the perfect temperature for 6 to 12 hours. Its eye-catching diamond geometric exterior isn't just beautiful — it gives you a confident, non-slip grip wherever life takes you.

Why You'll Love It

• Double-Wall Vacuum Insulation: Keeps hot drinks hot and cold drinks cold for 6–12 hours — no sweating, no heat loss.
• Premium Dual Stainless Steel Construction: Food-grade 304 stainless steel inner liner meets a durable 201 stainless steel outer shell for long-lasting performance.
• Generous 500ml Capacity: Holds enough coffee, tea, or water to power you through your morning or workout without constant refills.
• Portable & Versatile Design: Comes with a convenient lifting rope — perfect for your desk, car cup holder, gym bag, or backpack.
• Stylish Diamond Shape: The unique faceted exterior turns heads and makes this tumbler as much a style statement as a practical tool.
• Lightweight & Compact: At just 271g and 18.2cm tall, it's easy to carry all day without the bulk.

Product Specifications

Perfect For

• Office & Work-From-Home desks
• Car commutes & road trips
• Gym, yoga, and outdoor workouts
• Camping, hiking, and travel
• Gifting — for colleagues, friends, or family

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Care Instructions

Hand wash recommended. Avoid soaking the lid or using abrasive cleaners. Do not microwave or place in the freezer. Rinse thoroughly after each use to maintain freshness and hygiene.

For more information on food-safe materials and stainless steel drinkware standards, visit the FDA's Food Contact Substances page.

Frequently Asked Questions

Q: How long does the diamond-shaped insulated cup keep drinks hot or cold?

A: This vacuum-insulated stainless steel thermos cup maintains drink temperatures for 6 to 12 hours, depending on the beverage temperature, ambient conditions, and how often the lid is opened. For best results, pre-heat or pre-chill the cup before filling.

Q: Is the inner liner of this insulated tumbler safe for hot beverages?

A: Yes! The inner liner is made from food-grade 304 stainless steel, which is widely regarded as safe for use with hot and cold beverages. It is rust-resistant, non-toxic, and free from BPA concerns associated with plastic drinkware.

Q: Will this 500ml thermos cup fit in a standard car cup holder?

A: Yes, the cup's base width is 6.3 cm, which is designed to fit most standard car cup holders, making it an ideal travel and commuter companion.

Q: Does the diamond-shaped insulated cup come with a carrying strap or rope?

A: Yes! The cup includes a convenient lifting rope, so you can easily carry it by hand, attach it to a bag, or hang it at your desk or locker.

Q: How should I clean my stainless steel thermos cup?

A: Hand washing with warm soapy water is recommended for the best longevity. Avoid the dishwasher, as high heat and detergents may affect the vacuum seal and the exterior finish. Rinse thoroughly after each use.