Osprey Duro LT Hydration Pack with Flasks When you are deep into a marathon block or trail running adventure, the last thing you need is a hydration pack that shifts, chafes, or slows you down. The Osprey Duro LT Hydration Pack is meticulously designed to eliminate distractions, featuring a stable 360-degree stretch backpanel and adjustable, removable dual chest straps that deliver a secure, body-hugging fit. Built with an ultra-breathable Airmesh bodywrap, this lightweight vest ensures maximum ventilation and a soft, irritation-free contact surface. It is tailored specifically for the male torso and available in multiple sizes, guaranteeing a locked-in, bounce-free ride even during high-intensity intervals or long, technical trail sessions. Efficiency is everything when you are chasing a new personal best, and the Duro LT keeps your performance essentials exactly where you need them. The pack comes fully equipped with two Hydraulics™ 500 ml Soft Flasks, fitted with innovative WingStay™ stabilisers, allowing you to sip on the move and manage your fluid intake effortlessly. Alongside instant hydration, the intuitive pocket layout includes dual front stretch slots for your gels and supplements, a vertical-zip pocket for valuables, and a spacious pass-through lumbar pocket for quick access.  Specifications: Volume: 0.5 Litres Accessories Included: 500mL Soft Flask(s) Small: 40H x 35W x 3D / Weight 150 grams Medium: 42H x 38W x 3D / Weight 160 grams Large: 44H x 41W x 3D / Weight 170 grams