Check the listing for details. CAMELBAK Mini MULE M.U.L.E. Hydration Kids Back Pack W/ Bladder Red Flames. Color: Red, Condition: Pre-owned, Made in Unknown. Listed at 13.50 USD. This CAMELBAK Mini M.U.L.E. hydration backpack is the perfect accessory for your little adventurer. With a vibrant red color block design and unique logo accents, this pack is both stylish and functional. The divider system and external pockets make it easy to store and access all of your child's essentials, while the zip closure ensures that everything stays secure. Made from durable nylon material, this backpack is built to withstand the rigors of summer hikes, biking, and even skiing and snowboarding. The unit measures 13 inches in height and 7 inches in width, making it a small but mighty addition to your child's gear. Care instructions are simple, just clean with a damp cloth and this pack is ready for any adventure.