The North Face delivers a true runner's pack with the Flight Race Day 8. This vest combines tons of smart features with a super comfortable and adjustable strap system. The soft-flask bottles stash securely in the chest straps and are easy to insert with a simple leash system. Additional front pockets store snacks and your phone. The back features a main compartment for extra layers or a hydration bladder, and a lower pouch for holding running poles. An emergency whistle and reflective elements make this race-rules compatible. Breathable mesh material throughout ups the ventilation when you lock in your PR pace.