Aonijie 600ml softflask compresses as you drink to eliminate water sloshing around.  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.