About 10 years ago I bought this Camelbak Mule for mountain biking. It's been through countless crashes, multiple countries, and is now used as a diaper bag. Never broke and barely shows
CamelBak Mini M.U.L.E. Hydration Pack - Kids' - 1.5 Liters | REI Co-op
Camelbak Mule '04 vs '05 vs '06 | Mountain Bike Reviews Forum
CAMELBAK MULE MINI Hydration Kids Back Pack NO Bladder Red Flames HIKE CAMP BIKE | eBay