The pull-out hose puts less stress on the valve. And you weren't stressed to start with. It's all very well hauling a giant pump around, but all that leverage can snap a delicate valve stem right off.
With a removable visor that can shield you from the sun, 22 vents to keep you cool, and the added benefit of Mips®, the Vasona™ Mips® helmet is an ideal choice for any ride, any time.