Key benefits Ultralightweight marathon/cycling design: 1.5litre hydration pack that sits snug against your back with no bouncing, enabling hands hydration during longdistance runs or rides. Weight is XX grams. Quickleakproof hydration system: Easytoggle bite valve releases water with a gentle squeeze; insulated tube helps prevent overheating in summer and freezing in winter, suitable for extreme weather. Safe, foodgrade materials: Medicalgrade TPU lining and 100% BPA construction resist bacterial growth and odours. Safe for cold water, warm drinks, or sports beverages including electrolyte mixes. Hassle refilling and maintenance: Widemouth opening allows 5second refills; dust cover keeps the mouthpiece hygienic for outdoor use. Use scenarios Endurance training and events: Ideal for marathon pacing, long cycling sessions, or trail runs where steady, hands hydration is crucial. Variable weather outdoor activities: Insulated tube supports temperature stability, making it suitable for hot days or cold environments during outdoor adventures. Everyday fitness and commuting: Lightweight and unobtrusive for gym workouts, distance training, or ferrying drinks during a commute. Specifications Capacity: 1.5 litres Weight: weighs just XX grams Fit and design: Ultralightweight hydration pack that sits snug against the back with no bounce; hands operation for uninterrupted hydration during longdistance runs or rides Materials: medicalgrade TPU lining; 100% BPA Hydration system: quicktoggle bite valve for easy water release; insulated tube to manage temperature extremes Refilling: widemouth opening for fast refills (5 seconds); dust cover keeps mouthpiece hygienic outdoors Beverage compatibility: safe for cold water, warm drinks, or electrolytebearing sports beverages Intended use: suitable for marathoners, cyclists, longdistance runners, and outdoor enthusiasts seeking reliable, convenient hydration