Nathan TrailMix 7L Vest Hydration Belts & Water Bottles Sangria/Magenta Purple/Blue Sky : The Nathan TrailMix 7L Vest with 2L bladder is the ultra-streamlined racing vest for the no-frills trail enthusiast. This lightweight and durable vest offers ample space for running necessities and plenty of hydration. An external daisy chain located at the back provides the chance to attach lighting implements and other essentials. Front storage for nutrition and bottles. Includes a bladder hose sternum attachment. Reflectivity hits provide 360-degree visibility. Features adjustable front and side straps to fine-tune the fit. The internal compression system tightens the pack against the back for stability. Features a soft perimeter binding that prevents chafing during long training runs and races.