Why Choose Our 420ml LED Smart Custom Vacuum Flask?
The 420ml LED smart custom vacuum flask combines premium materials with smart functionality. Built with double-wall insulated Stainless Steel 304, it keeps beverages hot or cold for hours. The sleek matte finish offers durability and a stylish, modern look for daily use.
Smart LED Temperature Display
The lid features a touch-activated LED display that shows the current drink temperature instantly—a convenient upgrade for work, commuting, and travel.
Perfect for Travel, Office & Corporate Gifting
Compact, lightweight, and leak-proof, this 420ml flask fits easily into bags for active lifestyles. Add your logo via silkscreen, UV print, or sticker print to create a high-quality custom thermos bottle that enhances brand visibility and makes an impactful corporate gift.
Care Instructions & Sustainability
Hand wash the flask body with mild soap and water to maintain the matte finish. Avoid submerging the lid to protect the LED display. The reusable stainless steel design supports eco-conscious practices by reducing single-use plastics.
Features & Specifications
Material: Stainless Steel 304 (inner & outer)
Capacity: 420ml
Insulation: Double-wall vacuum insulated
Lid Feature: Built-in smart LED temperature indicator
