The bottle is made of decent quality plastic with a internal straw that goes down to the bottom unlike many bottles. The best feature is the no touch drinking spout. You can open and close it without touching what goes in you mouth. It is easy to clean. Nothing to take apart, just wipe with soapy water, rinse and dry. There is a lock device that will prevent the spring loaded spout cover from opening by mistake. Good feature. We are very pleased with this bottle and would buy one again.