Food Grade: Made with PP materials and high elastic silicone, withstands temperatures from 40°C to 230°C for safe use in extreme conditions, ideal for outdoor cycling and hiking Large 500ml Capacity: Provides ample hydrations for sports activities like cycling or winter skiing, eliminating frequent refills Bright Color Option: Available in blues, black, and bright yellow to collocation your styles while staying functional for outdoor adventures Space Saving Foldable Design: Unique folding structure reduces to 1 / 3 of its size when empty, perfect for easy storage during travel, cycling, or family outings Wide Mouth for Easy Cleaning: Features a spacious opening for hand access and dishwasher safe convenience, suitable for busy commuters and outdoor enthusiasts