Rainbow Mini Insulated Stainless Steel Travel Tumbler – Portable Color-Changing Cup for On-the-Go Hydration

Product Overview

Meet the Rainbow Mini Insulated Tumbler — a vibrant, ultra-portable companion designed for people who value both style and practicality. Whether you're commuting, running errands, or grabbing coffee between meetings, this compact tumbler fits effortlessly in cup holders, backpack side pockets, and even larger coat pockets. Its eye-catching, multi-hue finish shifts subtly in different lighting — adding playful personality to your everyday routine without compromising function.

Key Features

• True Portability: Slim, straight-body profile (approx. 4.3 in tall × 2.2 in diameter) makes it easy to carry and store — no bulky bulk, just smart, space-conscious design.
• Vibrant Visual Appeal: Premium surface treatment creates a dynamic rainbow shimmer that catches light beautifully — no dyes, no decals, just durable, integrated color reflection.
• Reliable Thermal Performance: Keeps cold drinks chilled for up to 6 hours and hot beverages warm for up to 3 hours — ideal for short-to-mid duration use.
• Food-Safe Stainless Construction: Inner and outer walls made from high-grade 201 stainless steel — corrosion-resistant, BPA-free, and rigorously tested for safety and durability.
• Everyday-Ready Build: Smooth, seamless welds and polished finish resist fingerprints and smudges. Lightweight yet sturdy — perfect for students, professionals, and active lifestyles.

Detailed Description

This isn’t just another tumbler — it’s a thoughtfully scaled hydration tool built for real life. The Rainbow Mini is engineered to balance aesthetics and utility: its compact stature doesn’t sacrifice capacity (holds approx. 8 oz / 240 mL), while its insulated double-wall construction delivers consistent temperature retention without added weight. The smooth, rounded lip ensures comfortable sipping, and the flat base provides stable placement on desks, dashboards, or café tables. Designed for universal use, it suits all ages and fits seamlessly into school bags, gym totes, work laptops cases, and vehicle cup holders. No complicated seals or removable parts — just intuitive, reliable performance every time you reach for a drink.

Specifications

• Material: 201 stainless steel (inner and outer walls)
• Dimensions: Approx. 11 cm (4.3 in) height × 5.5 cm (2.2 in) diameter
• Capacity: 240 mL (8 fl oz)
• Style: Straight-wall, minimalist travel tumbler
• Occasion: Daily commute, office use, campus life, road trips, gym sessions, casual outings

How to Use & Care

Rinse before first use. Hand wash with mild soap and warm water; avoid abrasive sponges or harsh detergents. Do not microwave or freeze. For best longevity, dry thoroughly after washing and store with lid off to prevent moisture buildup. Avoid prolonged exposure to highly acidic or sugary beverages without rinsing promptly.

Q&A

Is this tumbler dishwasher safe?

No — hand washing is recommended to preserve the surface finish and thermal seal integrity over time.

Does it fit in standard car cup holders?

Yes. Its 5.5 cm (2.2 in) diameter is compatible with most vehicle cup holders, including compact and sedan models.

What’s the difference between 201 and 304 stainless steel in this tumbler?

The inner and outer walls are made of 201 stainless steel — a food-grade, corrosion-resistant alloy optimized for lightweight thermal products. While 304 offers slightly higher nickel content, 201 meets all required safety and performance standards for insulated drinkware and is widely used in premium tumblers at this scale.

Can I use it for hot coffee or tea?

Yes — it maintains warmth for up to 3 hours. For optimal hot beverage performance, pre-warm the tumbler with hot water for 1–2 minutes before pouring.

Is the rainbow effect permanent?

Yes — the iridescent finish is applied via a physical vapor deposition (PVD) process bonded directly to the stainless surface. With proper care, it resists fading and scratching under normal daily use.

Does it come with a lid?

Yes — each tumbler includes a secure-fit, BPA-free plastic lid with a sip opening. Lids are not leak-proof but provide splash resistance during transport.