• I also have the matching speed shorts for sale!• This lightweight backpack is perfect for short runs, hikes, and commutes. Fabric is durable and water-repellent. Designed for: Run, Office Travel Commute Ventilation: Moulded back panel with ventilation helps keep you comfortable 360° reflectivity: Helps to keep you bright in low light Bungee cord system : Holds your gear and prevent bounce on your commute Volume: 13L, tested to hold 22kg (50lb) Phone pocket: Quick-access phone pocket helps keep you connected