Nerd Belt NB400 body { font-family: Arial, sans-serif; line-height: 1.6; color: #333; margin: 20px; } h1, h2 { color: #222; } ul { padding-left: 20px; } table { width: 100%; border-collapse: collapse; margin: 20px 0; } th, td { border: 1px solid #ddd; padding: 10px; text-align: left; } th { background-color: #f5f5f5; } Nerd Belt NB400 The Nerd Belt NB400 is a lightweight, comfortable, no bounce hydration and running belt designed for runners and endurance athletes who need secure storage and hydration while moving. This versatile belt holds two 200 ml bottles and a spacious pouch that fits your phone, keys, race number and energy gels without shifting, regardless of your pace. Built for runners tackling long training runs, half marathons, marathons, Ironman events and ultra distances, the NB400 delivers hands free hydration and nutrition support so you can stay focused on performance and recovery. For best results, the belt should sit on your hips to ensure maximum comfort and stability. Why You Will Love It Designed to stay secure at all paces with no bounce Includes space for two 200 ml bottles for easy hydration Spacious pouch fits phones, keys, race number and up to six energy gels Stretchy and comfortable adjustable strap fits a wide range of hip sizes Ideal for all distances from daily training to ultra events Technical Specifications Specification Details Runner profile Runners and endurance athletes needing hydration and storage while running Hydration capacity Two 200 ml bottles included Belt fit Adjustable strap fits hips approximately 71 cm to 110 cm Pouch size Approx. 11 cm high by 19 cm long, fits phone, keys, race number and gels Bottle features Freezer safe, leak proof, squeeze lid, hand wash only, recyclable Bounce control No bounce design for stability at any pace Support type Hydration and storage for training runs and races Best for Daily training, half marathons, marathons, Ironman events and ultra running Staff Picks Macca recommends The NB400 is a reliable option when you want hands free hydration and secure storage without bounce. With its lightweight feel, dual bottle setup and generous pouch space, it works perfectly for long runs, race days and endurance training.