An excellent minimalist pack with two 14oz/414ml bottles. Lightweight air mesh on interior back and straps for maximum breathability Wide side straps that adjust for a secure no bounce fit and elastic keepers to hold excess webbing Weight w/ flasks: 12.41oz/351.8g Weight w/out flasks: 7.45oz/211.2g One Size Fits most with adjustable sternum & side straps. Reflective hits for 360 degree visibility Storage Capacity: 244 cu in/4 L Exterior soft, lightweight durable material that dries quickly. Large back expandable mesh pocket perfect for clothes, gear and other larger essentials. 4 Front expandable mesh pockets; 2 flask with elastic keepers to keep flask in place and 2 stash pockets ideal for nutrition, sunglasses and more Large back storage pocket with separate bladder compartment that features 3 different holders and hold up to a 2L bladder. Does not include a bladder