The Montbell Alpine Thermo Bottle 0.5L is the pinnacle of thermal efficiency for outdoor adventurers. Engineered with lightweight, stainless steel double-wall vacuum construction and an insulated inner cap, this bottle keeps hot drinks hot and cold drinks cold for hours. Its durable SUS304 stainless steel outer wall and corrosion-resistant SUS316 stainless steel inner wall ensure lasting performance in extreme conditions.

Designed with practicality in mind, the Alpine Thermo Bottle features anti-slip grooves in the outer cap and a hexagonal-shaped inner cap, making it easy to open—even with gloves on. The insulated screw cap minimizes heat loss, allowing you to enjoy piping hot beverages or refreshing cold water, even at high altitudes.

Montbell's innovative copper lining enhances insulation, effectively trapping heat and cold while preventing thermal bleed. This bottle is proven to maintain hot liquids for up to half a day and keep cold drinks cold for over 24 hours, crucial for those all-day climbing sessions at the Buttermilks.