Adventure bound. Featuring ample pockets, hiking pole storage, and hydration slots, this running vest's accessories help you tackle any terrain. Fabric - Strategic fabric placement for mobility and thermal comfort Chest Measurements (S/M): 33"-36" (83.8cm-91.4cm) Features - Adjustable stretch sternum straps keep your vest snug and secure as you run. Bonus: detach and use as a hair tie in a pinch - 360º reflectivity - Strap on top of shoulder keeps your hydration hose in place - Whistle in front pocket - Front drop-in pocket fits a 500ml hydration flask with an elasticated loop to keep flask in place - A secure zippered pocket for your phone - Drop-in pockets for running essentials - Attach your bicycle light to the loop on the lower back of the vest - Secure your hiking poles to your lower back with the adjustable shock cords NOTE: Hiking poles, hydration flask, hydration bladder, phone, and bicycle light NOT INCLUDED