Features:
Flask compresses as you drink to eliminate water sloshing around inside it
Updated soft bite valve with a higher flow rate, easy on the teeth
Slim and lightweight fills easily
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)
 
Specification:
Material: TPU
Capacity: 500ml
Weight: 33g
Standard: US FDA 21 CFR 177.1350
Features: Folding, lightweight and BPA free
Application: climbing/hiking/cycling/running