EXTREME INSULATION PERFORMANCE: With its vacuum-sealed double wall and copper coating, the Alpine Star hot water flask keeps drinks hot for up to 27 hours and cold for up 100 hours. Built to perform—even when the temperatures drop below zero. ADVENTURE-READY DESIGN: Featuring anti-slip grip zones, a rugged body structure, and a silicone base for stability on icy or uneven ground, this stainless steel water bottle is your ultimate companion in rough terrain or high altitudes. EASY TWIST & POUR: The precision Twist&Pour cap with integrated drinking cup means you can pour your beverage easily—even with gloves on. The type of insulated bottle ideal for cold mornings or mountaintop coffee breaks. ULTRA-LIGHT & SUSTAINABLE: 30% lighter than comparable camping water bottles and made from 90% recycled stainless steel, the Alpine Star insulated flask proves that durable can also mean eco-conscious. SWISS ENGINEERING, MAXIMUM RELIABILITY: Designed with over 110 years of expertise, this leakproof and BPA-free water bottle delivers Swiss precision and rugged quality you can trust—wherever your path leads.