The Splash About Baby Wrap keeps babies warm in the water and prevents the shock factor of water to changing room chills. It gives solidity to the body making parents surer of their grip, protects barrier cream for those who require it and is a total sun block. Our unique design opens completely flat for ease of dressing and adjustment so that you can enjoy a no-fuss changing room experience. Made from 3 mm soft and supple neoprene (the material used for wetsuits) with a tough layer of nylon either side. The Baby Wraps are fully bound and fasten together with generous sections of very strong but flexible hook and loop. This allows you to ensure the Baby Wrap fits your child perfectly, as well as allowing for some growing-room flexibility. Selection of Designs and Sizes Available - Please choose your preferences from the drop down menu. Small 0-6 Months Medium 6 -18 Months Large 18 -30+ Months If you're not sure between two sizes, we would advise to size up as these have been small fitting. You can see full size guide linked here for guidance.https://www.splashabout.com/size-guide/