NWT Fast and Free Backpack 13L color: blue Waistband straps provide stability for a low-bounce run Customize the fit: Customize the fit with the adjustable sternum strap 360° reflectivity: Helps to keep you bright in low light Interior compression straps keep your essentials from bouncing around Dimensions: 25cm x 9.5cm x 41cm (9.5" x 3.5" x 16") Volume: 13L