With an antibacterial finish. Convenient foldable 450ml soft flask with bite valve.Specifications: Material: TPU Capacity: 450ml Weight: 33g Standard: US FDA 21 CFR 177.1350 Features: Folding, lightweight and BPA free Application: climbing/hiking/cycling/runningFeatures: Flask compresses as you drink to eliminate water sloshing around inside it. Updated soft bite valve with higher flow rate, easy on the teeth. Slim and lightweight, fills easily with wide mouth opening. Durable Thermoplastic Polyurethane (TPU) construction. BPA, PVC and Phthalate free, will not taint taste; Meets or exceeds FDA and EC regulation. Hydration vest compatible: fits easily in most hydration vest, belt or pack pockets. Soft material conforms to any pocket for a comfortable carrying. Reliable and safe: 100% BPA & PVC free. Wide working temperature range (0° C- 40° C / 104-° F)
