Sip in Style! 🥤 Elevate your hydration game with the Boulder Flask. Graphite finish adds a modern touch to your outdoor gear. Crafted from copolyester and silicone for long-lasting use. Compact and lightweight, perfect for on-the-go adventures. Wide mouth for easy filling, pouring, and sipping. Molded graduation marks for accurate volume tracking. 10 fl oz capacity Wide mouth design 0.3 lbs lightweight The GSi Outdoors Boulder Flask Thermos is a versatile and stylish hydration solution designed for the modern adventurer. With a wide mouth for easy access and molded graduation marks for precise measurements, this lightweight flask is perfect for both casual outings and serious expeditions. Made from durable copolyester and silicone, it combines functionality with a sleek graphite finish, making it a must-have accessory for anyone who values both style and practicality.