Muji
Lucky Charms Stainless Steel Heat & Cold Retaining Mug
Best portable thermos for commuters seeking festive, spill-proof daily hydration.
This compact and lightweight stainless steel thermos is designed for portability, making it ideal for carrying your favorite beverages on the go. Featuring double vacuum insulation, it effectively maintains the temperature of drinks, keeping them warm for extended periods. The mug is adorned with festive red icons and symbols intended to bring good fortune for the new year. Its small size ensures it fits easily into a bag, offering convenience without sacrificing performance for daily use.
$16.90
Owner Satisfaction
4.7
/ 5
Category Rank
77
/ 986
#77 in Thermoses
Price vs Category Average
-68%
Below average
SKU
4550344892725
Who it's for
- Commuters needing hot coffee throughout their long workday
- Minimalists seeking durable gear with a clean aesthetic
- Busy professionals wanting spill-free transport for their drinks
Who should skip it
- Budget-conscious shoppers looking for an affordable everyday mug
- Coffee purists who frequently switch between different beverage types
- Travelers prioritizing maximum liquid capacity over insulation performance
Performance breakdown
Thermal Retention
Double vacuum insulation keeps beverages at temperature for your daily commute.
Portability
Ultra-compact frame slides effortlessly into even the smallest handbags.
Leak Resistance
Reliable silicone seal ensures your bag stays dry during transit.
Build Quality
Durable stainless steel construction balances lightweight feel with long-term resilience.
Capacity Utility
The 200ml volume is perfect for quick sips, not all-day hydration.
Aesthetic Appeal
Festive icons offer a charming, seasonal touch for daily beverage rituals.
Key Specs
SKU
4550344892725
Volume Capacity
Approx. 6.8 fl oz (200 ml)
Dimensions
Approx. Dia. 2.4 x H5.9" (Dia. 6.0 x H15.0 cm)
Body Material
Stainless Steel
Lid Material
Polypropylene
Seal Material
Silicone
Heat proof up to
212°F (100°C)
Cold proof up to
-4°F (-20°C)
Features
- Double vacuum insulation maintains beverage temperature effectively
- Lightweight and compact design for easy portability
- Ideal size for carrying in a bag for on-the-go use
- Prevents spills, ensuring mess-free transport
- Keeps drinks cold, suitable for yogurt or cold beverages
- Features a unique, fortune-bringing decorative design
What customers say
Customers are genuinely impressed by the mug's reliable thermal performance. Reviewers frequently highlight how long the stainless steel construction keeps coffee hot and iced beverages cold, making it a true daily companion. The design successfully marries Muji's signature minimalist quality with a playful, subtle nod to the Lucky Charms theme. This combination of superior function and appealing aesthetic justifies the price point, establishing the mug as a highly valued item for everyday use.
Know before you buy
This mug holds approximately 6.8 fluid ounces (200 ml), making it a compact choice for a single serving of coffee, tea, or a small snack like yogurt.
Yes, the double vacuum insulation is effective for both temperature extremes. It is rated to handle cold liquids down to -4°F and hot liquids up to 212°F.
Yes, the mug is designed with a secure lid and silicone seals to prevent spills, allowing you to safely carry it in your bag during your daily commute.
The body is crafted from durable stainless steel, while the lid is made of polypropylene with silicone seals to ensure a tight, leak-resistant closure.
With a diameter of approximately 2.4 inches, this slim, compact design is intended to fit easily into most standard cup holders and small bag compartments.
Still have a question?
Ask Hayley anything about this product before you decide.