TPU hydration bladder is BPA/BPF/BPS free, safe to use, large capacity with wide mouth for easy clean and add water, nice equipment for outdoorcamping, running, cycling,mountaineering, marathon and hiking.Features:TPU water bladder is BPA/BPF/BPS free, safe to use.Wide opening makes it easier to add water and ice cubes, and easy to clean up.1.5L capacity for long lasting hydration, fits well for most of backpacks.Water temperature: -20~60°C / -4°F-140°F.Fold it for space-saving storage when not use.Neoprene tube resists temperature changes in hot and cold weather.Suitable for camping, hiking, cycling and other sports and outdoor events.Specifications:Model: Style 1:Blue / Style 2:Transparent (optional)Material: TPU + SBRCapacity: 1.5LWater temperature: -20~60°C / -4°F-140°FOpening Diameter: 8.3cm / 3.2inTube Length: 95cm / 37inBladder Size: 34 * 17.5cm / 13.3 * 6.8inPackage Weight: 213g / 7.5ozPackage List:1 * Hydration Bladder1 * Neoprene Tube