It'll be hot out there at the dog run this summer so make sure you stay hydrated!
Have your human get one of my Utility Satchels because it has a 'Gulpy' for your water and lots of room for c-o-o-k-i-e-s and t-r-e-a-t-s. And extra balls for retrieving.
There are multiple pockets for human things like wallets, car keys and cell phones.
Here's a sample of what's awaiting you.
See more under my Utility Satchel section.