NIKE NIKELAB ACG Hydration Race Vest 3.5L Capacity Unisex -Mustard yellow with black dots -Nylon/Polyester -Imported -Large main compartment fits hydration bladder (sold separately) or can be used for additional storage -Mesh shoulder straps and back panel for breathability and comfort. -Multiple stretch mesh pockets for easy access storage -Zippered dry zone compartment for secure storage -Dual, adjustable sternum straps for a customized, stable fit -Reflective detailing for enhanced visibility in low light conditions. -Capacity 3.5L. -Weight 9.5oz