Start the little ones off with the CamelBak Skeeter think of it as a bike pack with training wheels featuring an Antidote reservoir.. . . . . . . Kids lightweight mesh back panel and harness reduce overheating. 1.5 L Antidote reservoir with quick snap cap, low profile fit for stability, and lighter fill port to cut weight. Simple and easy to use external fill. Reflectivity for added safety. Short torso allows access to jersey pockets. No waist belt for mobility and ease of use. Torso length of pack: 12 in. 28 cm. Pack body: 210D nylon with polyurethane coating and DWR finish for water resistance.