MATERIAL - The bottle body is made of silica gel and TPU, which is safe to use. PP material screw cap, easy to open by twist SILICONE NOZZLE - Adjustable silicone nozzle, soft and durable, easy to absorb water. Lift before use and bite the nozzle FOLDABLE - The kettle is a soft TPU, which is folded mini for easy storage CONVENIENT - The water injection port is large , which is convenient for water injection and easy to clean APPLICATIONS - It is a perfect companion for outdoor sports such as cycling, trail running, marathon, running on the road