1.Material: Collapsible soft water bottle are made of food-grade TPU material with good weather resistance, BPA-. 2.Product features: Soft Flask odorless and resistant to cleaning, lightweight and wear-resistant, No need to worry about damaging it under strenuous exercise. It can be folded up after drinking to reduce the burden of the sportsman. 3.About the nozzle: Soft water bottle running excellent sealing, do not have to worry about water leakage under strenuous exercise. In addition, our nozzle is removable and replaceable, we recommend replacing the nozzle after a long period of use to ensure its hygienic condition. 4.Cleaning method: Simply detach the nozzle and clean it with a household brush. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.