The R750 Polisport bidon is as light as a feather at only 71 grams and has an ergonomic design that makes it easy to grip with one hand. The R750 water bottle is produced from BPA-free, safe material and has a super flexible and easy squeeze perfect for use during high intensity sports.The drinking spout is made from a soft TPE material that opens easily and has a high flow rate to quench your thirst quickly. Bottle has a wide opening for easy filling and cleaning and handy measure indication for when you're preparing a sports drink or just need to check the amount of water easily.