Description Made from odorless, non-toxic materials, it meets runners' needs for health and environmental protection. Designed specifically for trail running, it is lightweight, durable, and odorless, making it suitable for long-term, high-intensity outdoor activities. It is also suitable for various trail running scenarios, such as mountains, forests, and deserts, and is easy to carry and allows for quick hydration. Odorless materials used in trail running hydration packs offer broad application value, suitable for various outdoor and sports activities, meeting the needs of different users. 1) Trail Running: In trail running across diverse terrains such as mountains, forests, and deserts, these packs provide a convenient hydration solution, ensuring runners stay hydrated during prolonged physical activity. 2) Hiking: Ideal for long-distance hikes or daily hikers, the hydration pack can be easily stored in a backpack for on-the-go hydration. 3) Mountaineering: During high-intensity mountaineering activities, runners or climbers require frequent hydration, making the lightweight and portable hydration pack an ideal choice. 4) Mountain biking: Cyclists can use the water bladder to conveniently replenish fluids during off-road rides, maintaining stamina. 5) Off-road races or marathons: In various off-road competitions, participants can use the water bladder to access energy drinks or water, ensuring hydration and energy replenishment throughout the race. 6) Daily exercise: Suitable for gym workouts, jogging, and other daily activities, allowing users to stay hydrated and maintain bodily fluid balance at all times. 7) Outdoor activities: Suitable for camping, picnics, and other outdoor settings, providing participants with access to drinking water, ideal for family or group activities. Features: BPA-free and PVC-free, made from double-layered odorless leather material, compliant with standards in the US, EU, and Asia, ensuring safety and comfort during drinking. New sliding wide-mouth design with a spacious opening for easy filling and cleaning. Custom-designed universal mount compatible with a wide range of accessories, such as clips, hooks, and rope loops. Quick-connect design with a lightweight self-sealing valve that can be opened and locked with one hand. 360-degree rotating mouthpiece with a valve that can be easily opened or closed with one hand or a slight bite. Lightweight design for easy carrying during prolonged physical activity, reducing additional burden. UTR220 Specs: Capacity: 2L/3L Dimensions: 39.8*18cm/16.5in*7in(2L) 41.3*20.2/17in*8in(3L) Weight: 156.9g/0.35lb(2L) 162.2g/0.36lb(3L) Material: EVA+PE Tube Length:100 CM Care: Remove the top slider and empty remaining liquidWash bladder with warm water and soapRun warm soapy water through the hoseRinse both until soapy residue is goneDry with top openPro Tip: Use balled up paper towels in your bladder to help it dry