Review on 🏃 Nathan NS4912 Marathon Running Belt: Lightweight Training Pack with Stretch Pocket for Effective Performance by Matt Hamilton

What I've been waiting for! I've used the Nathan 5k for endurance racing and it's too small to carry my iPhone 6 around in its massive case, car key and power supply. It has enough room for an iPhone and has a divider to keep it separate from the key and there's plenty of room for power. (Now if only someone could make a hydration belt for a bottle with a compartment big enough for new iPhones!) That's a big improvement over the 5k.