Maybe your inner jogger needs a running backpack? Since it only comes in beige, your colour choice is made very easy.
From Amazon
CAMELBAK Armorbak Insulated Hydration Pack with 3 Litre Military Short Arm Crux Reservoir - Coyote - 3 Litre
OnBuy
CamelBak Armorbak 3L MilSpec Crux Hydration Pack Short (Coyote)