Danielle | fitness + lifestyle on Instagram: "Marathon Training has been tough in this hot and humid weather, but with the right shoes from @zappos to keep me motivated to move, it makes it all worth it! The new @brooksrunning Adrenaline GTS 25 are the perfect shoe to rotate in to your weekly mileage. Check them out at @zappos #ad #marathontraining #treadmillworkout #brooksrunning #zappos #runningmotivation #runningshoes #homegym #runrunrun"