Nike Run Backpack. Unisex One Size Color: Black/Anthracite/Silver Style: N0003567-045 Brand new. No damage or stains Retail Price: $70 A RACE-DAY STORAGE SOLUTION. Perfect for race day, the Nike Backpack features a stabilized design that reduces movement while you run. Mesh panels at the back add breathability so you can run in comfort, mile after mile. Benefits - Side cinch straps help secure the backpack to your body. - Hydration tube clip and internal pocket for a hydration bladder help you stay hydrated while you're on the run. Product Details - Hydration bladder sold separately - Dimensions: 19" x 12" x 7" - Materials: 100% polyester - Spot clean