NEW WITH TAG RIPPED OFF (never worn) M/L unisex sizing -Elasticated sternum straps keep your pack secure and snug as you run -Attach your bicycle light to the loop on the lower back of the vest -Strap on top of shoulder keeps your hydration hose in place -Detachable whistle on front pocket -Front drop-in pocket fits a 500ml hydration flask with a tie to keep flask in place -A watertight zippered pocket for your phone, and drop-in pockets hold running essentials -Hiking pole tunnel with shockcords secures poles to your back -Back storage fits a 1.5L hydration bladder -360 reflectivity -Hiking poles, hydration flask, hydration bladder, phone, and bicycle light not included