From bunny slopes to big time runs, the CamelBak Kids' Kicker hydration pack is insulated, lift friendly, and comfortable so your child can stay hydrated all day.. . Kids Fit Therminator harness system with sternum strap ensures your childs comfort during long days on the slopes. Snowshed back panel helps keep your childs back dry, even if they throw the pack down in the snow. 1.5 L Antidote reservoir has a 14 turn easy openclose cap, lightweight fill port, patented Big Bite valve, fold out drying arms, and easy to clean wide mouth opening center baffling keeps the profile low and offers unmatched stability. Anti microbial HydroGuard technology embeds a silver ion compound into the reservoir film to eliminates 99.99% of common bacteria and fungi. Insulated PureFlow tube and insulated bite valve cover keep the water flowing, no matter how cold it is outside. Insulated PureFlow tube and insulated bite valve cover keep the water flowing, no matter how cold it is outside. 4 L 225 cu. in of cargo space is perfect for carrying a snack, spare hat and gloves, and a two way radio. Adjusts to fit torso sizes up 13 in. 33 cm long. Convenient Velcro tabs keep excess strap webbing out of the way. Integrated safety whistle on the sternum strap. Reservoir is 100% BPA free. Designed for kids ages 5 and up.