Sigg Alpine Star Insulated Flask

The Alpine Star is SIGG’s premium insulated bottle built for performance in demanding Scottish conditions. Designed with copper-coated double-wall vacuum insulation, it keeps drinks hot or cold for extended periods while remaining tough and reliable. With anti-slip surfaces, a stable silicone base, and a functional cap system, it is engineered for outdoor use where durability and temperature control are essential. Features Copper-coated double-wall vacuum insulation for maximum temperature retention Keeps drinks hot up to 15 hours and cold up to 56 hours (0.5 L version) Anti-slip grip, distinctive grooves and silicone base for stability Leak-proof closure with Twist&Pour cap and integrated drinking cup Compatible with carbonated drinks BPA-free and made with 90% post-consumer recycled stainless steel