The Gregory 3D Hydro Trek 3L in Optic Blue is a versatile hydration reservoir tailored for backpacking, hiking, and backcountry basecamps. Its unique round shape fits seamlessly into multi-day top-loading packs, secured by the drawstring closure and top compression, ensuring balanced weight distribution and easy mid-hike refills. At camp, the push-button pour spout allows for quick water dispensing, making it convenient for filling pots, bottles, or washing hands. The soft-molded 3D design prevents contact between top and bottom layers, accelerating drying time and reducing bacterial growth. Additional features include an integrated 90° quick-disconnect fitting for smooth hose routing, a comfortable molded handle for easy filling, and compatibility with 38 mm pump filters. Constructed from durable, BPA-free materials, this 3-liter reservoir is designed to meet the hydration needs of outdoor enthusiasts.