Premium 500ml Vacuum Insulated Stainless Steel Flask with Twin Cups

Double-wall vacuum insulation technology maintains temperature for 12 hours (hot) and 24 hours (cold), ideal for travel, hiking, or office use.

Food-grade 304 stainless steel interior resists rust and odors, while mirror-polished exterior features scratch-resistant coating for durability.

Includes 2 leak-proof collapsible silicone cups (stackable design) – perfect for sharing beverages during picnics or car trips.

Ergonomic curved lid with one-touch opening mechanism enables smooth单手operation, while the widened base prevents tipping.

Ultra-lightweight (380g) with carabiner-ready hanging loop, optimized for backpacks or gym bags.

BPA-free materials meet FDA/CE standards, safely storing coffee, tea, or smoothies without metallic aftertaste.

Industrial-grade rotary welding ensures seamless construction, eliminating condensation or heat transfer.