The Frostbear Flask – Thermos Bottle is engineered for explorers who refuse to settle. Built from premium stainless steel with a multi-layer vacuum core, it keeps your drink hot or cold for up to 72 hours — no matter where your path leads. Featuring a built-in tea strainer, reinforced handles, and adjustable carry straps, it’s your trusted companion for long treks, basecamps, and winter expeditions.
Every detail of the Frostbear Flask is designed for durability, utility, and endurance — from its medical-grade 316 steel liner to the waterproof silicone seal. Whether you’re camping in the forest, hiking the fjells, or working outdoors in the freezing cold, this flask ensures that every sip stays perfectly hot — or refreshingly cold.
Key features
Extreme insulation: Multi-layer vacuum structure keeps liquids hot or cold for up to 72 hours.
Adventure-ready capacity: Choose between 1.3L, 2.0L, 2.5L, or 4.0L sizes — enough to last multi-day trips.
Integrated tea strainer: Built-in stainless steel filter for tea, coffee, or herbal infusions.
Rugged construction: 304 & 316 stainless steel body with reinforced handles and shoulder strap mounts.
Secure & waterproof: PP + silicone sealing system prevents leaks even under pressure.
Dual-purpose lid: Top cap doubles as a drinking cup with inner scenic engraving detail.
Rinse with warm water before first use for optimal insulation performance.
Store open and dry when not in use.
Shipping & customs
Estimated delivery: 8–20 business days. Orders are shipped from outside the EU and may be subject to local VAT and customs duties; any such charges are determined by local customs authorities or displayed at checkout.
Built for those who roam beyond the ordinary — Frostbear Flask keeps your spirit warm, wherever the frost bites.
